/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/atomic/18-conditional-atomic.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-05 20:30:05,432 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 20:30:05,434 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 20:30:05,472 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-05 20:30:05,472 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-05 20:30:05,476 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-05 20:30:05,478 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-05 20:30:05,484 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-05 20:30:05,486 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-05 20:30:05,490 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-05 20:30:05,491 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-05 20:30:05,492 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-05 20:30:05,492 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 20:30:05,494 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 20:30:05,496 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 20:30:05,497 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 20:30:05,499 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 20:30:05,500 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 20:30:05,502 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 20:30:05,521 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 20:30:05,522 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 20:30:05,525 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 20:30:05,526 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 20:30:05,528 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 20:30:05,534 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-05 20:30:05,537 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-05 20:30:05,537 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-05 20:30:05,539 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-05 20:30:05,539 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-05 20:30:05,540 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-05 20:30:05,540 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-05 20:30:05,541 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-05 20:30:05,541 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-05 20:30:05,541 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 20:30:05,542 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 20:30:05,542 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 20:30:05,550 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-06-05 20:30:05,582 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 20:30:05,582 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 20:30:05,583 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 20:30:05,583 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 20:30:05,585 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 20:30:05,586 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 20:30:05,586 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 20:30:05,586 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 20:30:05,586 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 20:30:05,586 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 20:30:05,587 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 20:30:05,587 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 20:30:05,587 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 20:30:05,587 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 20:30:05,587 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 20:30:05,588 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 20:30:05,588 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 20:30:05,588 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 20:30:05,588 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 20:30:05,588 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 20:30:05,588 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 20:30:05,588 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 20:30:05,588 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 20:30:05,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 20:30:05,589 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 20:30:05,589 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 20:30:05,589 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 20:30:05,589 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 20:30:05,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 20:30:05,589 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 20:30:05,589 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 20:30:05,589 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 20:30:05,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 20:30:05,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 20:30:05,922 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 20:30:05,923 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 20:30:05,923 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 20:30:05,924 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/18-conditional-atomic.c [2021-06-05 20:30:05,989 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6a310afe/4e615c097b7441248a3bcb32c7143360/FLAG4744877e1 [2021-06-05 20:30:06,386 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 20:30:06,386 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/18-conditional-atomic.c [2021-06-05 20:30:06,386 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-05 20:30:06,414 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6a310afe/4e615c097b7441248a3bcb32c7143360/FLAG4744877e1 [2021-06-05 20:30:06,426 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6a310afe/4e615c097b7441248a3bcb32c7143360 [2021-06-05 20:30:06,428 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 20:30:06,429 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 20:30:06,430 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 20:30:06,431 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 20:30:06,433 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 20:30:06,434 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 08:30:06" (1/1) ... [2021-06-05 20:30:06,436 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5597240f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:30:06, skipping insertion in model container [2021-06-05 20:30:06,436 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 08:30:06" (1/1) ... [2021-06-05 20:30:06,442 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 20:30:06,452 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 20:30:06,638 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 20:30:06,655 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 20:30:06,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 20:30:06,680 INFO L208 MainTranslator]: Completed translation [2021-06-05 20:30:06,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:30:06 WrapperNode [2021-06-05 20:30:06,681 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 20:30:06,682 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 20:30:06,683 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 20:30:06,683 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 20:30:06,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:30:06" (1/1) ... [2021-06-05 20:30:06,695 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:30:06" (1/1) ... [2021-06-05 20:30:06,707 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 20:30:06,710 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 20:30:06,710 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 20:30:06,710 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 20:30:06,716 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:30:06" (1/1) ... [2021-06-05 20:30:06,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:30:06" (1/1) ... [2021-06-05 20:30:06,718 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:30:06" (1/1) ... [2021-06-05 20:30:06,718 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:30:06" (1/1) ... [2021-06-05 20:30:06,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:30:06" (1/1) ... [2021-06-05 20:30:06,728 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:30:06" (1/1) ... [2021-06-05 20:30:06,733 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:30:06" (1/1) ... [2021-06-05 20:30:06,739 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 20:30:06,740 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 20:30:06,740 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 20:30:06,740 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 20:30:06,741 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:30:06" (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 [2021-06-05 20:30:06,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 20:30:06,827 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 20:30:06,827 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 20:30:06,827 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-06-05 20:30:06,828 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-06-05 20:30:06,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 20:30:06,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 20:30:06,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 20:30:06,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 20:30:06,830 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 20:30:07,238 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 20:30:07,239 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-06-05 20:30:07,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 08:30:07 BoogieIcfgContainer [2021-06-05 20:30:07,240 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 20:30:07,242 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 20:30:07,242 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 20:30:07,244 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 20:30:07,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 08:30:06" (1/3) ... [2021-06-05 20:30:07,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f7a1feb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 08:30:07, skipping insertion in model container [2021-06-05 20:30:07,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:30:06" (2/3) ... [2021-06-05 20:30:07,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f7a1feb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 08:30:07, skipping insertion in model container [2021-06-05 20:30:07,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 08:30:07" (3/3) ... [2021-06-05 20:30:07,247 INFO L111 eAbstractionObserver]: Analyzing ICFG 18-conditional-atomic.c [2021-06-05 20:30:07,252 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 20:30:07,252 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 20:30:07,252 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 20:30:07,257 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 20:30:07,280 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:30:07,281 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:30:07,281 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:30:07,281 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:30:07,281 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:30:07,281 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:30:07,282 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:30:07,282 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:30:07,282 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:30:07,282 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:30:07,282 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:30:07,282 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:30:07,283 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~ite0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:30:07,283 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:30:07,283 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:30:07,283 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:30:07,284 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:30:07,284 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~ite0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:30:07,284 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:30:07,285 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:30:07,285 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:30:07,285 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:30:07,287 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:30:07,287 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:30:07,287 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~ite0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:30:07,287 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:30:07,287 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:30:07,288 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:30:07,288 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:30:07,288 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:30:07,290 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 20:30:07,309 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-05 20:30:07,325 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 20:30:07,326 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 20:30:07,326 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 20:30:07,326 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 20:30:07,326 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 20:30:07,326 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 20:30:07,326 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 20:30:07,326 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-05 20:30:07,334 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 27 transitions, 59 flow [2021-06-05 20:30:07,345 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 63 states, 61 states have (on average 1.6065573770491803) internal successors, (98), 62 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:30:07,347 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 61 states have (on average 1.6065573770491803) internal successors, (98), 62 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:30:07,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-06-05 20:30:07,352 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:30:07,352 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:30:07,353 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:30:07,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:30:07,357 INFO L82 PathProgramCache]: Analyzing trace with hash 783688426, now seen corresponding path program 1 times [2021-06-05 20:30:07,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:30:07,365 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567896797] [2021-06-05 20:30:07,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:30:07,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:30:07,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:30:07,536 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:30:07,536 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567896797] [2021-06-05 20:30:07,537 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567896797] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:30:07,538 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:30:07,538 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-05 20:30:07,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429627919] [2021-06-05 20:30:07,542 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 20:30:07,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:30:07,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 20:30:07,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 20:30:07,560 INFO L87 Difference]: Start difference. First operand has 63 states, 61 states have (on average 1.6065573770491803) internal successors, (98), 62 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:30:07,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:30:07,595 INFO L93 Difference]: Finished difference Result 61 states and 94 transitions. [2021-06-05 20:30:07,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 20:30:07,597 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-06-05 20:30:07,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:30:07,603 INFO L225 Difference]: With dead ends: 61 [2021-06-05 20:30:07,604 INFO L226 Difference]: Without dead ends: 36 [2021-06-05 20:30:07,605 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 20:30:07,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-06-05 20:30:07,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-06-05 20:30:07,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.4) internal successors, (49), 35 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:30:07,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 49 transitions. [2021-06-05 20:30:07,639 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 49 transitions. Word has length 17 [2021-06-05 20:30:07,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:30:07,640 INFO L482 AbstractCegarLoop]: Abstraction has 36 states and 49 transitions. [2021-06-05 20:30:07,640 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:30:07,641 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 49 transitions. [2021-06-05 20:30:07,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-06-05 20:30:07,643 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:30:07,643 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:30:07,643 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 20:30:07,644 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:30:07,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:30:07,646 INFO L82 PathProgramCache]: Analyzing trace with hash 1625603243, now seen corresponding path program 1 times [2021-06-05 20:30:07,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:30:07,648 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207472517] [2021-06-05 20:30:07,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:30:07,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:30:07,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:30:07,745 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:30:07,745 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207472517] [2021-06-05 20:30:07,745 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207472517] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:30:07,745 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:30:07,746 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-05 20:30:07,746 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414559443] [2021-06-05 20:30:07,747 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 20:30:07,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:30:07,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 20:30:07,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 20:30:07,753 INFO L87 Difference]: Start difference. First operand 36 states and 49 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:30:07,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:30:07,759 INFO L93 Difference]: Finished difference Result 33 states and 44 transitions. [2021-06-05 20:30:07,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 20:30:07,765 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-06-05 20:30:07,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:30:07,766 INFO L225 Difference]: With dead ends: 33 [2021-06-05 20:30:07,766 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 20:30:07,766 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 20:30:07,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 20:30:07,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 20:30:07,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:30:07,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 20:30:07,767 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2021-06-05 20:30:07,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:30:07,767 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 20:30:07,767 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:30:07,767 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 20:30:07,768 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 20:30:07,768 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 20:30:07,771 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 20:30:07,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 08:30:07 BasicIcfg [2021-06-05 20:30:07,773 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 20:30:07,775 INFO L168 Benchmark]: Toolchain (without parser) took 1344.54 ms. Allocated memory is still 371.2 MB. Free memory was 332.6 MB in the beginning and 292.2 MB in the end (delta: 40.4 MB). Peak memory consumption was 40.4 MB. Max. memory is 16.0 GB. [2021-06-05 20:30:07,776 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 371.2 MB. Free memory was 351.2 MB in the beginning and 351.1 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 20:30:07,777 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.76 ms. Allocated memory is still 371.2 MB. Free memory was 332.4 MB in the beginning and 354.1 MB in the end (delta: -21.7 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.0 GB. [2021-06-05 20:30:07,777 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.73 ms. Allocated memory is still 371.2 MB. Free memory was 354.1 MB in the beginning and 352.0 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 20:30:07,778 INFO L168 Benchmark]: Boogie Preprocessor took 29.10 ms. Allocated memory is still 371.2 MB. Free memory was 352.0 MB in the beginning and 350.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 20:30:07,779 INFO L168 Benchmark]: RCFGBuilder took 500.53 ms. Allocated memory is still 371.2 MB. Free memory was 350.9 MB in the beginning and 322.6 MB in the end (delta: 28.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-06-05 20:30:07,780 INFO L168 Benchmark]: TraceAbstraction took 531.09 ms. Allocated memory is still 371.2 MB. Free memory was 321.6 MB in the beginning and 292.2 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2021-06-05 20:30:07,786 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 371.2 MB. Free memory was 351.2 MB in the beginning and 351.1 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 250.76 ms. Allocated memory is still 371.2 MB. Free memory was 332.4 MB in the beginning and 354.1 MB in the end (delta: -21.7 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 25.73 ms. Allocated memory is still 371.2 MB. Free memory was 354.1 MB in the beginning and 352.0 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.10 ms. Allocated memory is still 371.2 MB. Free memory was 352.0 MB in the beginning and 350.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 500.53 ms. Allocated memory is still 371.2 MB. Free memory was 350.9 MB in the beginning and 322.6 MB in the end (delta: 28.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 531.09 ms. Allocated memory is still 371.2 MB. Free memory was 321.6 MB in the beginning and 292.2 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 41]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 34 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 445.4ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 9.0ms, AutomataDifference: 80.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 18.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 45 SDtfs, 16 SDslu, 19 SDs, 0 SdLazy, 4 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 23.6ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 8.7ms SsaConstructionTime, 49.9ms SatisfiabilityAnalysisTime, 147.0ms InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 80 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...