/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/weaver/chl-time-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-07 14:53:51,122 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-07 14:53:51,125 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-07 14:53:51,160 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-07 14:53:51,219 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-07 14:53:51,220 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-07 14:53:51,221 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-07 14:53:51,223 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-07 14:53:51,258 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-07 14:53:51,259 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-07 14:53:51,259 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-07 14:53:51,259 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-07 14:53:51,261 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-07 14:53:51,261 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-07 14:53:51,261 INFO L138 SettingsManager]: * Use SBE=true [2021-10-07 14:53:51,262 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-07 14:53:51,262 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-07 14:53:51,262 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-07 14:53:51,262 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-07 14:53:51,263 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-07 14:53:51,263 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-07 14:53:51,263 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-07 14:53:51,263 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-07 14:53:51,263 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-07 14:53:51,264 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-07 14:53:51,264 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-07 14:53:51,264 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-07 14:53:51,264 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-07 14:53:51,265 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-07 14:53:51,265 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-07 14:53:51,265 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-07 14:53:51,265 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-07 14:53:51,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-07 14:53:51,266 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-07 14:53:51,266 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-07 14:53:51,266 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-07 14:53:51,267 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-07 14:53:51,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-07 14:53:51,267 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-07 14:53:51,267 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-07 14:53:51,267 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-07 14:53:51,666 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-07 14:53:51,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-07 14:53:51,695 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-07 14:53:51,696 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-07 14:53:51,697 INFO L275 PluginConnector]: CDTParser initialized [2021-10-07 14:53:51,698 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-time-symm.wvr.c [2021-10-07 14:53:51,783 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7e7feeb00/4960e0ee0b7a40a5a23f7fa6cd2268df/FLAGcbbaeed44 [2021-10-07 14:53:52,413 INFO L306 CDTParser]: Found 1 translation units. [2021-10-07 14:53:52,414 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl-time-symm.wvr.c [2021-10-07 14:53:52,424 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7e7feeb00/4960e0ee0b7a40a5a23f7fa6cd2268df/FLAGcbbaeed44 [2021-10-07 14:53:52,777 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7e7feeb00/4960e0ee0b7a40a5a23f7fa6cd2268df [2021-10-07 14:53:52,785 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-07 14:53:52,796 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-07 14:53:52,799 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-07 14:53:52,800 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-07 14:53:52,805 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-07 14:53:52,807 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:53:52" (1/1) ... [2021-10-07 14:53:52,809 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32525f21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:53:52, skipping insertion in model container [2021-10-07 14:53:52,810 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:53:52" (1/1) ... [2021-10-07 14:53:52,818 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-07 14:53:52,840 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-07 14:53:53,012 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl-time-symm.wvr.c[2457,2470] [2021-10-07 14:53:53,016 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-07 14:53:53,026 INFO L203 MainTranslator]: Completed pre-run [2021-10-07 14:53:53,057 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl-time-symm.wvr.c[2457,2470] [2021-10-07 14:53:53,058 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-07 14:53:53,076 INFO L208 MainTranslator]: Completed translation [2021-10-07 14:53:53,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:53:53 WrapperNode [2021-10-07 14:53:53,077 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-07 14:53:53,078 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-07 14:53:53,079 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-07 14:53:53,079 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-07 14:53:53,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:53:53" (1/1) ... [2021-10-07 14:53:53,099 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:53:53" (1/1) ... [2021-10-07 14:53:53,126 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-07 14:53:53,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-07 14:53:53,127 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-07 14:53:53,127 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-07 14:53:53,137 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:53:53" (1/1) ... [2021-10-07 14:53:53,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:53:53" (1/1) ... [2021-10-07 14:53:53,140 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:53:53" (1/1) ... [2021-10-07 14:53:53,141 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:53:53" (1/1) ... [2021-10-07 14:53:53,147 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:53:53" (1/1) ... [2021-10-07 14:53:53,150 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:53:53" (1/1) ... [2021-10-07 14:53:53,152 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:53:53" (1/1) ... [2021-10-07 14:53:53,154 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-07 14:53:53,155 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-07 14:53:53,155 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-07 14:53:53,156 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-07 14:53:53,156 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:53:53" (1/1) ... [2021-10-07 14:53:53,170 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-07 14:53:53,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 14:53:53,202 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-07 14:53:53,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-07 14:53:53,301 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-07 14:53:53,301 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-07 14:53:53,302 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-07 14:53:53,302 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-07 14:53:53,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-07 14:53:53,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-07 14:53:53,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-07 14:53:53,303 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-07 14:53:53,303 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-07 14:53:53,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-07 14:53:53,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-07 14:53:53,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-07 14:53:53,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-07 14:53:53,307 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-07 14:53:54,115 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-07 14:53:54,116 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-07 14:53:54,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:53:54 BoogieIcfgContainer [2021-10-07 14:53:54,122 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-07 14:53:54,124 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-07 14:53:54,124 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-07 14:53:54,130 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-07 14:53:54,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:53:52" (1/3) ... [2021-10-07 14:53:54,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2592c8da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:53:54, skipping insertion in model container [2021-10-07 14:53:54,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:53:53" (2/3) ... [2021-10-07 14:53:54,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2592c8da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:53:54, skipping insertion in model container [2021-10-07 14:53:54,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:53:54" (3/3) ... [2021-10-07 14:53:54,136 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-time-symm.wvr.c [2021-10-07 14:53:54,144 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-07 14:53:54,145 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-07 14:53:54,145 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-10-07 14:53:54,145 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-07 14:53:54,202 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:53:54,203 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:53:54,203 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:53:54,204 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:53:54,204 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:53:54,204 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:53:54,206 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:53:54,207 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:53:54,208 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:53:54,208 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:53:54,208 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:53:54,208 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:53:54,216 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:53:54,217 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:53:54,217 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:53:54,220 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:53:54,220 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:53:54,221 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:53:54,233 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-07 14:53:54,300 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-07 14:53:54,312 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-07 14:53:54,312 INFO L340 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2021-10-07 14:53:54,351 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-07 14:53:54,363 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 109 places, 107 transitions, 230 flow [2021-10-07 14:53:54,366 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 109 places, 107 transitions, 230 flow [2021-10-07 14:53:54,368 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 109 places, 107 transitions, 230 flow [2021-10-07 14:53:54,451 INFO L129 PetriNetUnfolder]: 5/105 cut-off events. [2021-10-07 14:53:54,452 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-07 14:53:54,455 INFO L84 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 105 events. 5/105 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 76 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2021-10-07 14:53:54,460 INFO L116 LiptonReduction]: Number of co-enabled transitions 308 [2021-10-07 14:53:59,149 INFO L131 LiptonReduction]: Checked pairs total: 455 [2021-10-07 14:53:59,149 INFO L133 LiptonReduction]: Total number of compositions: 96 [2021-10-07 14:53:59,160 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 23 transitions, 62 flow [2021-10-07 14:53:59,176 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 101 states, 75 states have (on average 2.7333333333333334) internal successors, (205), 100 states have internal predecessors, (205), 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) [2021-10-07 14:53:59,180 INFO L276 IsEmpty]: Start isEmpty. Operand has 101 states, 75 states have (on average 2.7333333333333334) internal successors, (205), 100 states have internal predecessors, (205), 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) [2021-10-07 14:53:59,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-07 14:53:59,186 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:53:59,187 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-07 14:53:59,188 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2021-10-07 14:53:59,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:53:59,194 INFO L82 PathProgramCache]: Analyzing trace with hash 433706, now seen corresponding path program 1 times [2021-10-07 14:53:59,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:53:59,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661534436] [2021-10-07 14:53:59,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:53:59,207 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:53:59,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-07 14:53:59,337 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-07 14:53:59,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-07 14:53:59,386 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-07 14:53:59,388 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-07 14:53:59,390 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:53:59,393 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:53:59,394 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:53:59,394 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:53:59,394 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:53:59,394 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:53:59,395 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:53:59,395 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:53:59,395 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:53:59,396 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:53:59,396 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:53:59,396 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-07 14:53:59,396 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-07 14:53:59,397 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:53:59,397 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:53:59,397 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:53:59,398 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:53:59,398 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:53:59,398 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:53:59,398 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:53:59,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-07 14:53:59,408 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-07 14:53:59,408 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-07 14:53:59,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 02:53:59 BasicIcfg [2021-10-07 14:53:59,429 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-07 14:53:59,430 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-07 14:53:59,430 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-07 14:53:59,430 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-07 14:53:59,431 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:53:54" (3/4) ... [2021-10-07 14:53:59,433 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-07 14:53:59,479 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/weaver/chl-time-symm.wvr.c-witness.graphml [2021-10-07 14:53:59,480 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-07 14:53:59,482 INFO L168 Benchmark]: Toolchain (without parser) took 6693.78 ms. Allocated memory was 163.6 MB in the beginning and 200.3 MB in the end (delta: 36.7 MB). Free memory was 139.1 MB in the beginning and 127.8 MB in the end (delta: 11.3 MB). Peak memory consumption was 48.7 MB. Max. memory is 8.0 GB. [2021-10-07 14:53:59,483 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 163.6 MB. Free memory was 134.4 MB in the beginning and 134.3 MB in the end (delta: 102.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-07 14:53:59,484 INFO L168 Benchmark]: CACSL2BoogieTranslator took 278.02 ms. Allocated memory is still 163.6 MB. Free memory was 138.7 MB in the beginning and 128.6 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-10-07 14:53:59,485 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.53 ms. Allocated memory is still 163.6 MB. Free memory was 128.6 MB in the beginning and 126.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-07 14:53:59,485 INFO L168 Benchmark]: Boogie Preprocessor took 27.91 ms. Allocated memory is still 163.6 MB. Free memory was 126.9 MB in the beginning and 125.9 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-07 14:53:59,486 INFO L168 Benchmark]: RCFGBuilder took 967.32 ms. Allocated memory is still 163.6 MB. Free memory was 125.7 MB in the beginning and 145.1 MB in the end (delta: -19.4 MB). Peak memory consumption was 23.6 MB. Max. memory is 8.0 GB. [2021-10-07 14:53:59,487 INFO L168 Benchmark]: TraceAbstraction took 5304.68 ms. Allocated memory was 163.6 MB in the beginning and 200.3 MB in the end (delta: 36.7 MB). Free memory was 144.5 MB in the beginning and 129.9 MB in the end (delta: 14.7 MB). Peak memory consumption was 51.4 MB. Max. memory is 8.0 GB. [2021-10-07 14:53:59,488 INFO L168 Benchmark]: Witness Printer took 50.09 ms. Allocated memory is still 200.3 MB. Free memory was 129.9 MB in the beginning and 127.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-07 14:53:59,492 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 163.6 MB. Free memory was 134.4 MB in the beginning and 134.3 MB in the end (delta: 102.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 278.02 ms. Allocated memory is still 163.6 MB. Free memory was 138.7 MB in the beginning and 128.6 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 47.53 ms. Allocated memory is still 163.6 MB. Free memory was 128.6 MB in the beginning and 126.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 27.91 ms. Allocated memory is still 163.6 MB. Free memory was 126.9 MB in the beginning and 125.9 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 967.32 ms. Allocated memory is still 163.6 MB. Free memory was 125.7 MB in the beginning and 145.1 MB in the end (delta: -19.4 MB). Peak memory consumption was 23.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5304.68 ms. Allocated memory was 163.6 MB in the beginning and 200.3 MB in the end (delta: 36.7 MB). Free memory was 144.5 MB in the beginning and 129.9 MB in the end (delta: 14.7 MB). Peak memory consumption was 51.4 MB. Max. memory is 8.0 GB. * Witness Printer took 50.09 ms. Allocated memory is still 200.3 MB. Free memory was 129.9 MB in the beginning and 127.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4783.4ms, 109 PlacesBefore, 30 PlacesAfterwards, 107 TransitionsBefore, 23 TransitionsAfterwards, 308 CoEnabledTransitionPairs, 7 FixpointIterations, 73 TrivialSequentialCompositions, 11 ConcurrentSequentialCompositions, 7 TrivialYvCompositions, 0 ConcurrentYvCompositions, 5 ChoiceCompositions, 96 TotalNumberOfCompositions, 455 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 455, positive: 455, positive conditional: 0, positive unconditional: 455, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 165, positive: 165, positive conditional: 0, positive unconditional: 165, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 165, positive: 165, positive conditional: 0, positive unconditional: 165, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 455, positive: 290, positive conditional: 0, positive unconditional: 290, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 165, unknown conditional: 0, unknown unconditional: 165] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 44]: integer overflow possible integer overflow possible We found a FailurePath: [L38] 0 int ora_0, ora_2; [L39] 0 int volume_totale_1, volume_totale_3; [L40] 0 int cmp_4, cmp_5; [L62] 0 pthread_t t1, t2; [L65] 0 ora_0 = __VERIFIER_nondet_int() [L66] 0 ora_2 = __VERIFIER_nondet_int() [L67] 0 volume_totale_1 = __VERIFIER_nondet_int() [L68] 0 volume_totale_3 = __VERIFIER_nondet_int() [L69] 0 cmp_4 = __VERIFIER_nondet_int() [L70] 0 cmp_5 = __VERIFIER_nondet_int() [L73] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [cmp_4=0, cmp_5=0, ora_0=0, ora_2=-2147483648, volume_totale_1=0, volume_totale_3=0] [L44] 1 ora_0 - ora_2 VAL [cmp_4=0, cmp_5=0, ora_0=0, ora_2=-2147483648, volume_totale_1=0, volume_totale_3=0] - UnprovableResult [Line: 44]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 53]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 53]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 78]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 78]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 73]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 74]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 121 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 5105.3ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 9.2ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 4864.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=101occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 5.8ms SsaConstructionTime, 43.6ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-07 14:53:59,557 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...