/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/concurrent/pthreads/globalVariableMultipleThreads.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 16:11:13,203 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 16:11:13,206 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 16:11:13,229 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 16:11:13,229 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 16:11:13,230 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 16:11:13,232 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 16:11:13,233 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 16:11:13,235 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 16:11:13,236 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 16:11:13,237 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 16:11:13,238 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 16:11:13,238 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 16:11:13,239 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 16:11:13,240 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 16:11:13,241 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 16:11:13,242 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 16:11:13,243 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 16:11:13,245 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 16:11:13,246 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 16:11:13,248 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 16:11:13,249 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 16:11:13,250 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 16:11:13,251 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 16:11:13,254 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-11 16:11:13,254 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-11 16:11:13,254 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-11 16:11:13,255 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-11 16:11:13,255 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-11 16:11:13,256 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-11 16:11:13,257 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 16:11:13,257 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 16:11:13,258 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 16:11:13,259 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 16:11:13,260 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 16:11:13,260 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 16:11:13,261 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 16:11:13,261 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 16:11:13,261 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 16:11:13,262 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 16:11:13,263 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 16:11:13,263 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-11 16:11:13,285 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 16:11:13,286 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 16:11:13,287 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 16:11:13,287 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 16:11:13,287 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 16:11:13,287 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 16:11:13,288 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 16:11:13,288 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 16:11:13,288 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 16:11:13,288 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 16:11:13,288 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 16:11:13,289 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 16:11:13,289 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 16:11:13,289 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 16:11:13,289 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 16:11:13,289 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 16:11:13,289 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 16:11:13,290 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 16:11:13,290 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 16:11:13,290 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 16:11:13,290 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 16:11:13,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 16:11:13,291 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 16:11:13,291 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 16:11:13,291 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 16:11:13,291 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 16:11:13,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 16:11:13,292 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-11 16:11:13,292 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-11 16:11:13,292 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 16:11:13,628 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 16:11:13,644 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 16:11:13,648 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 16:11:13,650 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 16:11:13,650 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 16:11:13,651 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/globalVariableMultipleThreads.c [2020-10-11 16:11:13,724 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c77d5f5ed/ae81d2cd5f204a53881631ae5bd16fc3/FLAG6472b84df [2020-10-11 16:11:14,179 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 16:11:14,180 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/globalVariableMultipleThreads.c [2020-10-11 16:11:14,180 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2020-10-11 16:11:14,180 WARN L117 ultiparseSymbolTable]: System include stdlib.h could not be resolved by CDT -- only built-in system includes are available. [2020-10-11 16:11:14,180 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2020-10-11 16:11:14,218 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c77d5f5ed/ae81d2cd5f204a53881631ae5bd16fc3/FLAG6472b84df [2020-10-11 16:11:14,598 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c77d5f5ed/ae81d2cd5f204a53881631ae5bd16fc3 [2020-10-11 16:11:14,606 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 16:11:14,608 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 16:11:14,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 16:11:14,609 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 16:11:14,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 16:11:14,614 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:11:14" (1/1) ... [2020-10-11 16:11:14,617 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28ed3eac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:11:14, skipping insertion in model container [2020-10-11 16:11:14,617 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:11:14" (1/1) ... [2020-10-11 16:11:14,625 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 16:11:14,641 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 16:11:14,901 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 16:11:14,914 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 16:11:14,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 16:11:14,942 INFO L208 MainTranslator]: Completed translation [2020-10-11 16:11:14,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:11:14 WrapperNode [2020-10-11 16:11:14,943 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 16:11:14,944 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 16:11:14,944 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 16:11:14,944 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 16:11:14,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:11:14" (1/1) ... [2020-10-11 16:11:14,961 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:11:14" (1/1) ... [2020-10-11 16:11:14,980 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 16:11:14,980 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 16:11:14,980 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 16:11:14,981 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 16:11:14,988 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:11:14" (1/1) ... [2020-10-11 16:11:14,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:11:14" (1/1) ... [2020-10-11 16:11:14,990 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:11:14" (1/1) ... [2020-10-11 16:11:14,990 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:11:14" (1/1) ... [2020-10-11 16:11:14,995 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:11:14" (1/1) ... [2020-10-11 16:11:14,999 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:11:14" (1/1) ... [2020-10-11 16:11:15,000 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:11:14" (1/1) ... [2020-10-11 16:11:15,002 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 16:11:15,003 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 16:11:15,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 16:11:15,003 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 16:11:15,004 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:11:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 16:11:15,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 16:11:15,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 16:11:15,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 16:11:15,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-11 16:11:15,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 16:11:15,070 INFO L130 BoogieDeclarations]: Found specification of procedure myThread [2020-10-11 16:11:15,070 INFO L138 BoogieDeclarations]: Found implementation of procedure myThread [2020-10-11 16:11:15,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 16:11:15,072 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 16:11:15,339 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 16:11:15,340 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-11 16:11:15,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:11:15 BoogieIcfgContainer [2020-10-11 16:11:15,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 16:11:15,344 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 16:11:15,344 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 16:11:15,352 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 16:11:15,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 04:11:14" (1/3) ... [2020-10-11 16:11:15,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@738fd8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:11:15, skipping insertion in model container [2020-10-11 16:11:15,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:11:14" (2/3) ... [2020-10-11 16:11:15,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@738fd8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:11:15, skipping insertion in model container [2020-10-11 16:11:15,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:11:15" (3/3) ... [2020-10-11 16:11:15,363 INFO L111 eAbstractionObserver]: Analyzing ICFG globalVariableMultipleThreads.c [2020-10-11 16:11:15,391 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-11 16:11:15,391 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 16:11:15,398 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-11 16:11:15,400 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 16:11:15,432 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#in~vargp.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:15,433 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#in~vargp.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:15,433 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:15,433 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:15,434 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:15,434 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:15,434 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:15,434 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:15,435 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:15,435 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:15,435 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:15,436 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:15,436 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:15,436 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:15,437 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:15,437 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:15,437 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:15,437 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:15,438 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:15,438 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:15,438 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:15,443 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:15,443 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:15,443 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:15,443 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:15,444 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:15,444 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:15,444 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:15,444 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:15,444 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:15,445 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:15,445 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:15,445 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:15,465 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-11 16:11:15,483 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 16:11:15,483 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 16:11:15,483 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 16:11:15,483 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 16:11:15,484 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 16:11:15,484 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 16:11:15,484 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 16:11:15,484 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 16:11:15,497 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 16:11:15,500 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 56 transitions, 120 flow [2020-10-11 16:11:15,502 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 56 transitions, 120 flow [2020-10-11 16:11:15,504 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 58 places, 56 transitions, 120 flow [2020-10-11 16:11:15,547 INFO L129 PetriNetUnfolder]: 2/64 cut-off events. [2020-10-11 16:11:15,547 INFO L130 PetriNetUnfolder]: For 1/2 co-relation queries the response was YES. [2020-10-11 16:11:15,552 INFO L80 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 64 events. 2/64 cut-off events. For 1/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 44 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 34. Up to 4 conditions per place. [2020-10-11 16:11:15,555 INFO L117 LiptonReduction]: Number of co-enabled transitions 600 [2020-10-11 16:11:16,565 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-10-11 16:11:16,786 INFO L132 LiptonReduction]: Checked pairs total: 567 [2020-10-11 16:11:16,786 INFO L134 LiptonReduction]: Total number of compositions: 52 [2020-10-11 16:11:16,793 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 13 places, 10 transitions, 28 flow [2020-10-11 16:11:16,802 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 21 states. [2020-10-11 16:11:16,805 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-10-11 16:11:16,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-11 16:11:16,811 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 16:11:16,812 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-11 16:11:16,812 INFO L429 AbstractCegarLoop]: === Iteration 1 === [myThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, myThreadErr0ASSERT_VIOLATIONASSERT]=== [2020-10-11 16:11:16,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:11:16,818 INFO L82 PathProgramCache]: Analyzing trace with hash 6727753, now seen corresponding path program 1 times [2020-10-11 16:11:16,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:11:16,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052578820] [2020-10-11 16:11:16,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:11:16,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:11:16,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:11:16,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052578820] [2020-10-11 16:11:16,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:11:16,999 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-11 16:11:17,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139042632] [2020-10-11 16:11:17,004 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 16:11:17,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:11:17,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 16:11:17,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 16:11:17,022 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2020-10-11 16:11:17,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 16:11:17,039 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2020-10-11 16:11:17,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 16:11:17,041 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-11 16:11:17,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 16:11:17,049 INFO L225 Difference]: With dead ends: 16 [2020-10-11 16:11:17,049 INFO L226 Difference]: Without dead ends: 11 [2020-10-11 16:11:17,050 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 16:11:17,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-10-11 16:11:17,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-10-11 16:11:17,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-11 16:11:17,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2020-10-11 16:11:17,079 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 4 [2020-10-11 16:11:17,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 16:11:17,080 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-10-11 16:11:17,080 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 16:11:17,080 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-10-11 16:11:17,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-11 16:11:17,081 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 16:11:17,081 INFO L421 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2020-10-11 16:11:17,081 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 16:11:17,082 INFO L429 AbstractCegarLoop]: === Iteration 2 === [myThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, myThreadErr0ASSERT_VIOLATIONASSERT]=== [2020-10-11 16:11:17,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:11:17,082 INFO L82 PathProgramCache]: Analyzing trace with hash -2124565089, now seen corresponding path program 1 times [2020-10-11 16:11:17,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:11:17,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234115539] [2020-10-11 16:11:17,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:11:17,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 16:11:17,112 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 16:11:17,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 16:11:17,134 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 16:11:17,157 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-11 16:11:17,157 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-11 16:11:17,159 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 16:11:17,160 WARN L371 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-11 16:11:17,161 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-10-11 16:11:17,170 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#in~vargp.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,170 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#in~vargp.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,170 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,170 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,171 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,171 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,171 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,171 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,172 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,172 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,172 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,172 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,172 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,173 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,173 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,173 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,173 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,173 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,174 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,174 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,174 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,175 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#in~vargp.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,175 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#in~vargp.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,175 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,175 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,176 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,176 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,176 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,176 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,176 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,177 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,177 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,177 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,177 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,177 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,177 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,178 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,178 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,178 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,178 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,178 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,179 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,179 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,179 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,180 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,180 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,180 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,180 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,180 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,181 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,181 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,181 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,181 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,181 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,186 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,186 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,186 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,186 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,187 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,187 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,187 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,187 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,187 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,188 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,188 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,188 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:17,195 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-11 16:11:17,195 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 16:11:17,196 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 16:11:17,196 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 16:11:17,196 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 16:11:17,196 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 16:11:17,196 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 16:11:17,196 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 16:11:17,196 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 16:11:17,200 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 16:11:17,200 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 78 transitions, 174 flow [2020-10-11 16:11:17,200 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 78 transitions, 174 flow [2020-10-11 16:11:17,200 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 81 places, 78 transitions, 174 flow [2020-10-11 16:11:17,230 INFO L129 PetriNetUnfolder]: 3/117 cut-off events. [2020-10-11 16:11:17,230 INFO L130 PetriNetUnfolder]: For 5/7 co-relation queries the response was YES. [2020-10-11 16:11:17,233 INFO L80 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 117 events. 3/117 cut-off events. For 5/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 198 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 66. Up to 6 conditions per place. [2020-10-11 16:11:17,237 INFO L117 LiptonReduction]: Number of co-enabled transitions 2760 [2020-10-11 16:11:18,134 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-10-11 16:11:18,359 INFO L132 LiptonReduction]: Checked pairs total: 7655 [2020-10-11 16:11:18,359 INFO L134 LiptonReduction]: Total number of compositions: 50 [2020-10-11 16:11:18,360 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 34 transitions, 86 flow [2020-10-11 16:11:18,415 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1003 states. [2020-10-11 16:11:18,415 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states. [2020-10-11 16:11:18,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-11 16:11:18,418 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 16:11:18,418 INFO L421 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2020-10-11 16:11:18,421 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT]=== [2020-10-11 16:11:18,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:11:18,421 INFO L82 PathProgramCache]: Analyzing trace with hash -597674599, now seen corresponding path program 1 times [2020-10-11 16:11:18,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:11:18,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64118754] [2020-10-11 16:11:18,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:11:18,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 16:11:18,476 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 16:11:18,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 16:11:18,498 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 16:11:18,506 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-11 16:11:18,506 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-11 16:11:18,506 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 16:11:18,507 WARN L371 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-11 16:11:18,508 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-10-11 16:11:18,517 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#in~vargp.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,517 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#in~vargp.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,518 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,518 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,518 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,518 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,518 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,518 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,519 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,519 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,519 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,519 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,519 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,520 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,520 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,520 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,520 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,520 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,520 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,521 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,521 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,521 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#in~vargp.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,522 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#in~vargp.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,522 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,522 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,522 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,522 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,522 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,522 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,523 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,523 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,523 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,523 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,523 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,524 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,524 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,524 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,524 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,524 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,524 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,525 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,525 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,525 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#in~vargp.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,526 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#in~vargp.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,526 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,526 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,526 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,526 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,526 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,526 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,527 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,527 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,527 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,527 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,527 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,527 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,528 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,528 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,528 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,528 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,528 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,529 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,529 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,529 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,529 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,530 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,530 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,530 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,530 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,530 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,531 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,531 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,531 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,531 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,531 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,533 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,533 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,533 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,533 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,534 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,534 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,534 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,534 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,534 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,534 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,535 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,535 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,536 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,537 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,537 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,537 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,537 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,537 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,537 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,538 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,538 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,538 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,538 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,538 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:11:18,542 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-11 16:11:18,542 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 16:11:18,542 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 16:11:18,542 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 16:11:18,542 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 16:11:18,543 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 16:11:18,543 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 16:11:18,543 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 16:11:18,543 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 16:11:18,545 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 16:11:18,545 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 100 transitions, 230 flow [2020-10-11 16:11:18,546 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 104 places, 100 transitions, 230 flow [2020-10-11 16:11:18,546 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 104 places, 100 transitions, 230 flow [2020-10-11 16:11:18,582 INFO L129 PetriNetUnfolder]: 4/179 cut-off events. [2020-10-11 16:11:18,582 INFO L130 PetriNetUnfolder]: For 13/17 co-relation queries the response was YES. [2020-10-11 16:11:18,584 INFO L80 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 179 events. 4/179 cut-off events. For 13/17 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 501 event pairs, 0 based on Foata normal form. 0/167 useless extension candidates. Maximal degree in co-relation 125. Up to 8 conditions per place. [2020-10-11 16:11:18,592 INFO L117 LiptonReduction]: Number of co-enabled transitions 5520 [2020-10-11 16:11:19,878 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-10-11 16:11:19,964 INFO L132 LiptonReduction]: Checked pairs total: 15295 [2020-10-11 16:11:19,964 INFO L134 LiptonReduction]: Total number of compositions: 61 [2020-10-11 16:11:19,965 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 52 places, 47 transitions, 124 flow [2020-10-11 16:11:20,741 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 12523 states. [2020-10-11 16:11:20,742 INFO L276 IsEmpty]: Start isEmpty. Operand 12523 states. [2020-10-11 16:11:20,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-11 16:11:20,746 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 16:11:20,746 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 16:11:20,747 INFO L429 AbstractCegarLoop]: === Iteration 1 === [myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, myThreadErr0ASSERT_VIOLATIONASSERT]=== [2020-10-11 16:11:20,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:11:20,748 INFO L82 PathProgramCache]: Analyzing trace with hash 1337401756, now seen corresponding path program 1 times [2020-10-11 16:11:20,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:11:20,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713807501] [2020-10-11 16:11:20,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:11:20,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:11:20,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:11:20,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713807501] [2020-10-11 16:11:20,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:11:20,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 16:11:20,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36114262] [2020-10-11 16:11:20,794 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 16:11:20,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:11:20,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 16:11:20,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-11 16:11:20,795 INFO L87 Difference]: Start difference. First operand 12523 states. Second operand 5 states. [2020-10-11 16:11:21,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 16:11:21,132 INFO L93 Difference]: Finished difference Result 16053 states and 52167 transitions. [2020-10-11 16:11:21,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 16:11:21,132 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-11 16:11:21,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 16:11:21,292 INFO L225 Difference]: With dead ends: 16053 [2020-10-11 16:11:21,293 INFO L226 Difference]: Without dead ends: 15826 [2020-10-11 16:11:21,293 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-11 16:11:21,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15826 states. [2020-10-11 16:11:21,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15826 to 13894. [2020-10-11 16:11:21,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13894 states. [2020-10-11 16:11:22,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13894 states to 13894 states and 46691 transitions. [2020-10-11 16:11:22,074 INFO L78 Accepts]: Start accepts. Automaton has 13894 states and 46691 transitions. Word has length 13 [2020-10-11 16:11:22,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 16:11:22,075 INFO L481 AbstractCegarLoop]: Abstraction has 13894 states and 46691 transitions. [2020-10-11 16:11:22,075 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 16:11:22,075 INFO L276 IsEmpty]: Start isEmpty. Operand 13894 states and 46691 transitions. [2020-10-11 16:11:22,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-11 16:11:22,078 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 16:11:22,078 INFO L421 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2020-10-11 16:11:22,079 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 16:11:22,079 INFO L429 AbstractCegarLoop]: === Iteration 2 === [myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, myThreadErr0ASSERT_VIOLATIONASSERT]=== [2020-10-11 16:11:22,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:11:22,079 INFO L82 PathProgramCache]: Analyzing trace with hash 367304155, now seen corresponding path program 1 times [2020-10-11 16:11:22,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:11:22,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985247826] [2020-10-11 16:11:22,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:11:22,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:11:22,196 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:11:22,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985247826] [2020-10-11 16:11:22,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [415898029] [2020-10-11 16:11:22,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 16:11:22,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:11:22,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-11 16:11:22,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-11 16:11:22,311 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 43 [2020-10-11 16:11:22,313 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 16:11:22,341 INFO L625 ElimStorePlain]: treesize reduction 31, result has 39.2 percent of original size [2020-10-11 16:11:22,348 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-10-11 16:11:22,349 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 16:11:22,354 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 16:11:22,360 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 16:11:22,360 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:26, output treesize:12 [2020-10-11 16:11:22,370 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2020-10-11 16:11:22,371 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 16:11:22,377 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 16:11:22,377 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 16:11:22,377 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2020-10-11 16:11:22,397 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2020-10-11 16:11:22,398 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 16:11:22,404 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 16:11:22,404 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 16:11:22,404 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:21 [2020-10-11 16:11:22,426 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 21 [2020-10-11 16:11:22,427 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 16:11:22,437 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 16:11:22,438 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 16:11:22,438 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:19 [2020-10-11 16:11:22,445 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2020-10-11 16:11:22,446 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 16:11:22,452 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 16:11:22,452 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 16:11:22,452 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:19 [2020-10-11 16:11:22,484 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 21 [2020-10-11 16:11:22,485 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 16:11:22,492 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 16:11:22,494 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 16:11:22,494 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:30, output treesize:19 [2020-10-11 16:11:22,541 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2020-10-11 16:11:22,542 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 16:11:22,548 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 16:11:22,550 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 16:11:22,550 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:36, output treesize:21 [2020-10-11 16:11:22,578 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:11:22,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-11 16:11:22,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2020-10-11 16:11:22,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063058055] [2020-10-11 16:11:22,580 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-11 16:11:22,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:11:22,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-11 16:11:22,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-10-11 16:11:22,581 INFO L87 Difference]: Start difference. First operand 13894 states and 46691 transitions. Second operand 12 states. [2020-10-11 16:11:22,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 16:11:22,851 INFO L93 Difference]: Finished difference Result 9897 states and 32288 transitions. [2020-10-11 16:11:22,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 16:11:22,851 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 15 [2020-10-11 16:11:22,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 16:11:22,892 INFO L225 Difference]: With dead ends: 9897 [2020-10-11 16:11:22,892 INFO L226 Difference]: Without dead ends: 9786 [2020-10-11 16:11:22,893 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2020-10-11 16:11:23,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9786 states. [2020-10-11 16:11:23,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9786 to 9786. [2020-10-11 16:11:23,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9786 states. [2020-10-11 16:11:23,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9786 states to 9786 states and 31881 transitions. [2020-10-11 16:11:23,380 INFO L78 Accepts]: Start accepts. Automaton has 9786 states and 31881 transitions. Word has length 15 [2020-10-11 16:11:23,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 16:11:23,382 INFO L481 AbstractCegarLoop]: Abstraction has 9786 states and 31881 transitions. [2020-10-11 16:11:23,382 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-11 16:11:23,382 INFO L276 IsEmpty]: Start isEmpty. Operand 9786 states and 31881 transitions. [2020-10-11 16:11:23,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-11 16:11:23,385 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 16:11:23,386 INFO L421 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 16:11:23,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 16:11:23,601 INFO L429 AbstractCegarLoop]: === Iteration 3 === [myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, myThreadErr0ASSERT_VIOLATIONASSERT]=== [2020-10-11 16:11:23,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:11:23,601 INFO L82 PathProgramCache]: Analyzing trace with hash 1619689545, now seen corresponding path program 1 times [2020-10-11 16:11:23,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:11:23,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656860339] [2020-10-11 16:11:23,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:11:23,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 16:11:23,623 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 16:11:23,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 16:11:23,641 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 16:11:23,650 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-11 16:11:23,651 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-11 16:11:23,651 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-11 16:11:23,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 04:11:23 BasicIcfg [2020-10-11 16:11:23,700 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 16:11:23,702 INFO L168 Benchmark]: Toolchain (without parser) took 9094.10 ms. Allocated memory was 249.0 MB in the beginning and 505.4 MB in the end (delta: 256.4 MB). Free memory was 204.3 MB in the beginning and 232.5 MB in the end (delta: -28.2 MB). Peak memory consumption was 228.2 MB. Max. memory is 14.2 GB. [2020-10-11 16:11:23,702 INFO L168 Benchmark]: CDTParser took 1.31 ms. Allocated memory is still 249.0 MB. Free memory is still 225.4 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 16:11:23,703 INFO L168 Benchmark]: CACSL2BoogieTranslator took 334.04 ms. Allocated memory was 249.0 MB in the beginning and 307.2 MB in the end (delta: 58.2 MB). Free memory was 204.3 MB in the beginning and 281.3 MB in the end (delta: -77.0 MB). Peak memory consumption was 25.4 MB. Max. memory is 14.2 GB. [2020-10-11 16:11:23,704 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.54 ms. Allocated memory is still 307.2 MB. Free memory was 281.3 MB in the beginning and 278.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 16:11:23,704 INFO L168 Benchmark]: Boogie Preprocessor took 22.18 ms. Allocated memory is still 307.2 MB. Free memory is still 278.8 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 16:11:23,705 INFO L168 Benchmark]: RCFGBuilder took 339.34 ms. Allocated memory is still 307.2 MB. Free memory was 278.8 MB in the beginning and 258.7 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 14.2 GB. [2020-10-11 16:11:23,706 INFO L168 Benchmark]: TraceAbstraction took 8356.07 ms. Allocated memory was 307.2 MB in the beginning and 505.4 MB in the end (delta: 198.2 MB). Free memory was 258.7 MB in the beginning and 232.5 MB in the end (delta: 26.1 MB). Peak memory consumption was 224.3 MB. Max. memory is 14.2 GB. [2020-10-11 16:11:23,710 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.31 ms. Allocated memory is still 249.0 MB. Free memory is still 225.4 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 334.04 ms. Allocated memory was 249.0 MB in the beginning and 307.2 MB in the end (delta: 58.2 MB). Free memory was 204.3 MB in the beginning and 281.3 MB in the end (delta: -77.0 MB). Peak memory consumption was 25.4 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 36.54 ms. Allocated memory is still 307.2 MB. Free memory was 281.3 MB in the beginning and 278.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 22.18 ms. Allocated memory is still 307.2 MB. Free memory is still 278.8 MB. There was no memory consumed. Max. memory is 14.2 GB. * RCFGBuilder took 339.34 ms. Allocated memory is still 307.2 MB. Free memory was 278.8 MB in the beginning and 258.7 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 14.2 GB. * TraceAbstraction took 8356.07 ms. Allocated memory was 307.2 MB in the beginning and 505.4 MB in the end (delta: 198.2 MB). Free memory was 258.7 MB in the beginning and 232.5 MB in the end (delta: 26.1 MB). Peak memory consumption was 224.3 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 394 VarBasedMoverChecksPositive, 6 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 6 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 9 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.2s, 58 PlacesBefore, 13 PlacesAfterwards, 56 TransitionsBefore, 10 TransitionsAfterwards, 600 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 52 TotalNumberOfCompositions, 567 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1654 VarBasedMoverChecksPositive, 66 VarBasedMoverChecksNegative, 4 SemBasedMoverChecksPositive, 62 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 281 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.1s, 81 PlacesBefore, 38 PlacesAfterwards, 78 TransitionsBefore, 34 TransitionsAfterwards, 2760 CoEnabledTransitionPairs, 5 FixpointIterations, 10 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 50 TotalNumberOfCompositions, 7655 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 3346 VarBasedMoverChecksPositive, 166 VarBasedMoverChecksNegative, 36 SemBasedMoverChecksPositive, 130 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.5s, 866 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.4s, 104 PlacesBefore, 52 PlacesAfterwards, 100 TransitionsBefore, 47 TransitionsAfterwards, 5520 CoEnabledTransitionPairs, 4 FixpointIterations, 10 TrivialSequentialCompositions, 48 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 61 TotalNumberOfCompositions, 15295 MoverChecksTotal - CounterExampleResult [Line: 25]: assertion can be violated assertion can be violated We found a FailurePath: [L15] 0 int g = 0; [L21] 0 static int s = 0; [L30] 0 int i; [L31] 0 pthread_t tid; [L34] 0 i = 0 VAL [g=0, s=0] [L34] EXPR 0 \read(i) [L34] COND TRUE 0 i < 3 [L35] FCALL, FORK 0 pthread_create(&tid, NULL, myThread, (void *)&i) VAL [g=0, s=0, vargp={2:0}] [L20] 1 int *myid = (int *)vargp; [L22] 1 ++s [L22] 1 ++g VAL [++g=1, g=0, myid={2:0}, s=1, vargp={2:0}, vargp={2:0}] [L22] 1 ++g VAL [g=1, myid={2:0}, s=1, vargp={2:0}, vargp={2:0}] [L24] 1 \read(*myid) VAL [\read(*myid)=0, g=1, myid={2:0}, s=1, vargp={2:0}, vargp={2:0}] [L34] EXPR 0 \read(i) [L34] 0 i++ [L34] EXPR 0 \read(i) [L34] COND TRUE 0 i < 3 [L35] FCALL, FORK 0 pthread_create(&tid, NULL, myThread, (void *)&i) VAL [\read(*myid)=0, g=1, myid={2:0}, s=1, vargp={2:0}, vargp={2:0}] [L20] 2 int *myid = (int *)vargp; [L22] 2 ++s VAL [\read(*myid)=0, g=1, myid={2:0}, s=2, vargp={2:0}, vargp={2:0}] [L24] 1 ++s VAL [++s=3, \read(*myid)=0, g=1, myid={2:0}, s=3, vargp={2:0}, vargp={2:0}] [L24] 1 ++g [L25] 1 CodeAnnotStmt[Assertion] VAL [g=2, myid={2:0}, s=3, vargp={2:0}, vargp={2:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 55 locations, 1 error locations. Started 3 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 8.0s, OverallIterations: 6, TraceHistogramMax: 4, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.7s, HoareTripleCheckerStatistics: 137 SDtfs, 270 SDslu, 628 SDs, 0 SdLazy, 205 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13894occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 1932 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 43 ConstructedInterpolants, 4 QuantifiedInterpolants, 6423 SizeOfPredicates, 6 NumberOfNonLiveVariables, 62 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 7/36 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! Received shutdown request...