/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-keepdead.epf -i ../../../trunk/examples/concurrent/pthreads/forkFork.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-21 00:15:09,252 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-21 00:15:09,256 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-21 00:15:09,313 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-21 00:15:09,314 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-21 00:15:09,318 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-21 00:15:09,323 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-21 00:15:09,331 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-21 00:15:09,335 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-21 00:15:09,342 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-21 00:15:09,344 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-21 00:15:09,345 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-21 00:15:09,346 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-21 00:15:09,350 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-21 00:15:09,353 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-21 00:15:09,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-21 00:15:09,358 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-21 00:15:09,362 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-21 00:15:09,371 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-21 00:15:09,379 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-21 00:15:09,384 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-21 00:15:09,386 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-21 00:15:09,388 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-21 00:15:09,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-21 00:15:09,401 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-21 00:15:09,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-21 00:15:09,415 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-21 00:15:09,416 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-21 00:15:09,417 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-keepdead.epf [2021-01-21 00:15:09,480 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-21 00:15:09,480 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-21 00:15:09,485 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-21 00:15:09,485 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-21 00:15:09,485 INFO L138 SettingsManager]: * Use SBE=true [2021-01-21 00:15:09,486 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-21 00:15:09,486 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-21 00:15:09,486 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-21 00:15:09,486 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-21 00:15:09,487 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-21 00:15:09,488 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-21 00:15:09,489 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-21 00:15:09,489 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-21 00:15:09,489 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-21 00:15:09,489 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-21 00:15:09,489 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-21 00:15:09,490 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-21 00:15:09,490 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-21 00:15:09,490 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-21 00:15:09,490 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-21 00:15:09,491 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-21 00:15:09,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-21 00:15:09,491 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-21 00:15:09,492 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-21 00:15:09,492 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-21 00:15:09,492 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-21 00:15:09,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-21 00:15:09,493 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-21 00:15:09,493 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-21 00:15:09,493 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2021-01-21 00:15:09,493 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-21 00:15:09,493 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-21 00:15:09,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-21 00:15:10,012 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-21 00:15:10,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-21 00:15:10,017 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-21 00:15:10,017 INFO L275 PluginConnector]: CDTParser initialized [2021-01-21 00:15:10,018 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/forkFork.c [2021-01-21 00:15:10,103 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca5df7c8f/9d23e48a98f14059939722481cc6eec3/FLAG16caf9106 [2021-01-21 00:15:10,745 INFO L306 CDTParser]: Found 1 translation units. [2021-01-21 00:15:10,745 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/forkFork.c [2021-01-21 00:15:10,746 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-01-21 00:15:10,746 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2021-01-21 00:15:10,793 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca5df7c8f/9d23e48a98f14059939722481cc6eec3/FLAG16caf9106 [2021-01-21 00:15:11,108 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca5df7c8f/9d23e48a98f14059939722481cc6eec3 [2021-01-21 00:15:11,111 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-21 00:15:11,115 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-21 00:15:11,117 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-21 00:15:11,118 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-21 00:15:11,122 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-21 00:15:11,123 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 12:15:11" (1/1) ... [2021-01-21 00:15:11,127 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72f95a58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:15:11, skipping insertion in model container [2021-01-21 00:15:11,127 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 12:15:11" (1/1) ... [2021-01-21 00:15:11,136 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-21 00:15:11,152 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-21 00:15:11,307 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-21 00:15:11,320 INFO L203 MainTranslator]: Completed pre-run [2021-01-21 00:15:11,338 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-21 00:15:11,355 INFO L208 MainTranslator]: Completed translation [2021-01-21 00:15:11,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:15:11 WrapperNode [2021-01-21 00:15:11,356 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-21 00:15:11,358 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-21 00:15:11,358 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-21 00:15:11,358 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-21 00:15:11,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:15:11" (1/1) ... [2021-01-21 00:15:11,377 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:15:11" (1/1) ... [2021-01-21 00:15:11,400 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-21 00:15:11,400 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-21 00:15:11,401 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-21 00:15:11,401 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-21 00:15:11,409 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:15:11" (1/1) ... [2021-01-21 00:15:11,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:15:11" (1/1) ... [2021-01-21 00:15:11,412 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:15:11" (1/1) ... [2021-01-21 00:15:11,412 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:15:11" (1/1) ... [2021-01-21 00:15:11,419 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:15:11" (1/1) ... [2021-01-21 00:15:11,421 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:15:11" (1/1) ... [2021-01-21 00:15:11,422 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:15:11" (1/1) ... [2021-01-21 00:15:11,426 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-21 00:15:11,427 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-21 00:15:11,427 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-21 00:15:11,427 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-21 00:15:11,428 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:15:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-21 00:15:11,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-01-21 00:15:11,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-21 00:15:11,504 INFO L130 BoogieDeclarations]: Found specification of procedure bar [2021-01-21 00:15:11,504 INFO L138 BoogieDeclarations]: Found implementation of procedure bar [2021-01-21 00:15:11,504 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-01-21 00:15:11,505 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-01-21 00:15:11,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-21 00:15:11,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-21 00:15:11,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-21 00:15:11,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-01-21 00:15:11,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-01-21 00:15:11,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-21 00:15:11,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-21 00:15:11,508 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-21 00:15:12,214 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-21 00:15:12,214 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2021-01-21 00:15:12,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 12:15:12 BoogieIcfgContainer [2021-01-21 00:15:12,217 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-21 00:15:12,220 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-21 00:15:12,220 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-21 00:15:12,224 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-21 00:15:12,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.01 12:15:11" (1/3) ... [2021-01-21 00:15:12,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76d8ecd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 12:15:12, skipping insertion in model container [2021-01-21 00:15:12,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:15:11" (2/3) ... [2021-01-21 00:15:12,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76d8ecd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 12:15:12, skipping insertion in model container [2021-01-21 00:15:12,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 12:15:12" (3/3) ... [2021-01-21 00:15:12,229 INFO L111 eAbstractionObserver]: Analyzing ICFG forkFork.c [2021-01-21 00:15:12,269 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-21 00:15:12,269 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-21 00:15:12,274 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-01-21 00:15:12,275 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-21 00:15:12,375 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,376 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,376 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,376 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,376 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,377 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,377 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,377 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,377 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,377 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,378 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,378 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,378 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,378 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,378 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,379 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,380 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,380 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,380 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,380 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,381 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,381 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,381 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,381 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,382 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,382 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,382 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,382 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,383 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,383 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,383 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,383 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,385 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,385 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,385 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,386 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,386 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,386 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,387 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,387 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,387 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,388 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,388 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,388 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,388 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,389 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,389 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,389 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,391 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,392 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,392 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,392 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,392 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,392 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,394 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~a.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,395 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~a.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,395 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,395 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,395 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~a.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,396 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~a.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,396 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,396 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,396 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,396 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,397 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,398 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,398 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,398 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,399 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,399 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,402 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,403 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,404 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,404 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,405 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,405 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,406 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,407 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,410 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,411 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,412 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,412 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,413 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,414 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,414 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,414 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,414 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,414 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,415 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,415 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,417 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,417 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,418 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,418 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,418 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,418 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,419 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,420 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,424 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,424 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,424 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,424 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,429 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,429 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,430 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,430 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,430 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,430 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,430 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,431 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,431 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,432 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,432 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,432 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,432 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,433 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,433 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,433 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,433 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,433 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,434 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,434 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,434 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,434 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,434 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,435 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,435 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,435 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,435 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,435 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,436 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,436 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,436 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,436 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,437 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,437 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,440 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,440 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,440 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,441 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,441 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,441 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,441 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,441 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,442 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,457 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,458 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,458 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,458 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,458 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,458 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,459 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,459 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,459 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,459 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,459 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,460 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,460 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,460 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,460 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,460 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,467 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,467 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,467 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,467 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,468 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,468 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,468 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,468 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,468 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:15:12,532 INFO L149 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2021-01-21 00:15:12,551 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-01-21 00:15:12,593 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-21 00:15:12,593 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-21 00:15:12,593 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-21 00:15:12,593 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-21 00:15:12,594 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-21 00:15:12,594 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-21 00:15:12,594 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-21 00:15:12,594 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-21 00:15:12,616 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 89 places, 83 transitions, 194 flow [2021-01-21 00:15:12,655 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 322 states, 317 states have (on average 2.0) internal successors, (634), 321 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:15:12,664 INFO L276 IsEmpty]: Start isEmpty. Operand has 322 states, 317 states have (on average 2.0) internal successors, (634), 321 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:15:12,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-01-21 00:15:12,674 INFO L496 BasicCegarLoop]: Found error trace [2021-01-21 00:15:12,675 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-21 00:15:12,675 INFO L429 AbstractCegarLoop]: === Iteration 1 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2021-01-21 00:15:12,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-21 00:15:12,681 INFO L82 PathProgramCache]: Analyzing trace with hash -202481228, now seen corresponding path program 1 times [2021-01-21 00:15:12,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-21 00:15:12,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512454327] [2021-01-21 00:15:12,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-21 00:15:12,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-21 00:15:13,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-21 00:15:13,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512454327] [2021-01-21 00:15:13,306 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-21 00:15:13,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-01-21 00:15:13,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890320509] [2021-01-21 00:15:13,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-01-21 00:15:13,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-21 00:15:13,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-01-21 00:15:13,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2021-01-21 00:15:13,334 INFO L87 Difference]: Start difference. First operand has 322 states, 317 states have (on average 2.0) internal successors, (634), 321 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:15:14,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-21 00:15:14,572 INFO L93 Difference]: Finished difference Result 310 states and 605 transitions. [2021-01-21 00:15:14,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-01-21 00:15:14,574 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-01-21 00:15:14,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-21 00:15:14,577 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=210, Invalid=720, Unknown=0, NotChecked=0, Total=930 [2021-01-21 00:15:14,577 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 605 transitions. Word has length 22 [2021-01-21 00:15:14,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-21 00:15:14,579 INFO L481 AbstractCegarLoop]: Abstraction has 310 states and 605 transitions. [2021-01-21 00:15:14,579 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:15:14,579 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 605 transitions. [2021-01-21 00:15:14,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-01-21 00:15:14,585 INFO L496 BasicCegarLoop]: Found error trace [2021-01-21 00:15:14,585 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-21 00:15:14,586 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-21 00:15:14,586 INFO L429 AbstractCegarLoop]: === Iteration 2 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2021-01-21 00:15:14,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-21 00:15:14,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1818769239, now seen corresponding path program 1 times [2021-01-21 00:15:14,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-21 00:15:14,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902169928] [2021-01-21 00:15:14,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-21 00:15:14,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-21 00:15:14,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-21 00:15:14,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902169928] [2021-01-21 00:15:14,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-21 00:15:14,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-21 00:15:14,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001822148] [2021-01-21 00:15:14,787 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-21 00:15:14,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-21 00:15:14,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-21 00:15:14,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-21 00:15:14,790 INFO L87 Difference]: Start difference. First operand 310 states and 605 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:15:15,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-21 00:15:15,112 INFO L93 Difference]: Finished difference Result 392 states and 727 transitions. [2021-01-21 00:15:15,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-01-21 00:15:15,113 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-01-21 00:15:15,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-21 00:15:15,114 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2021-01-21 00:15:15,115 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 727 transitions. Word has length 41 [2021-01-21 00:15:15,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-21 00:15:15,115 INFO L481 AbstractCegarLoop]: Abstraction has 392 states and 727 transitions. [2021-01-21 00:15:15,115 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:15:15,116 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 727 transitions. [2021-01-21 00:15:15,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-01-21 00:15:15,119 INFO L496 BasicCegarLoop]: Found error trace [2021-01-21 00:15:15,120 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-21 00:15:15,120 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-21 00:15:15,120 INFO L429 AbstractCegarLoop]: === Iteration 3 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2021-01-21 00:15:15,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-21 00:15:15,121 INFO L82 PathProgramCache]: Analyzing trace with hash -666144575, now seen corresponding path program 2 times [2021-01-21 00:15:15,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-21 00:15:15,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693641771] [2021-01-21 00:15:15,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-21 00:15:15,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-21 00:15:15,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-21 00:15:15,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693641771] [2021-01-21 00:15:15,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-21 00:15:15,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-21 00:15:15,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436899542] [2021-01-21 00:15:15,282 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-21 00:15:15,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-21 00:15:15,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-21 00:15:15,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-21 00:15:15,284 INFO L87 Difference]: Start difference. First operand 392 states and 727 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:15:15,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-21 00:15:15,536 INFO L93 Difference]: Finished difference Result 386 states and 711 transitions. [2021-01-21 00:15:15,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-21 00:15:15,537 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-01-21 00:15:15,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-21 00:15:15,537 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-01-21 00:15:15,538 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 711 transitions. Word has length 41 [2021-01-21 00:15:15,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-21 00:15:15,538 INFO L481 AbstractCegarLoop]: Abstraction has 386 states and 711 transitions. [2021-01-21 00:15:15,538 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:15:15,539 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 711 transitions. [2021-01-21 00:15:15,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-01-21 00:15:15,541 INFO L496 BasicCegarLoop]: Found error trace [2021-01-21 00:15:15,541 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-21 00:15:15,542 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-21 00:15:15,542 INFO L429 AbstractCegarLoop]: === Iteration 4 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2021-01-21 00:15:15,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-21 00:15:15,543 INFO L82 PathProgramCache]: Analyzing trace with hash 1504403321, now seen corresponding path program 3 times [2021-01-21 00:15:15,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-21 00:15:15,543 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770849911] [2021-01-21 00:15:15,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-21 00:15:15,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-21 00:15:15,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-21 00:15:15,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770849911] [2021-01-21 00:15:15,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-21 00:15:15,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-01-21 00:15:15,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943514511] [2021-01-21 00:15:15,855 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-01-21 00:15:15,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-21 00:15:15,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-01-21 00:15:15,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-01-21 00:15:15,856 INFO L87 Difference]: Start difference. First operand 386 states and 711 transitions. Second operand has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 15 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:15:16,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-21 00:15:16,836 INFO L93 Difference]: Finished difference Result 336 states and 616 transitions. [2021-01-21 00:15:16,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-01-21 00:15:16,837 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 15 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-01-21 00:15:16,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-21 00:15:16,838 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=198, Invalid=452, Unknown=0, NotChecked=0, Total=650 [2021-01-21 00:15:16,838 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 616 transitions. Word has length 41 [2021-01-21 00:15:16,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-21 00:15:16,839 INFO L481 AbstractCegarLoop]: Abstraction has 336 states and 616 transitions. [2021-01-21 00:15:16,839 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 15 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:15:16,839 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 616 transitions. [2021-01-21 00:15:16,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-21 00:15:16,841 INFO L496 BasicCegarLoop]: Found error trace [2021-01-21 00:15:16,842 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-21 00:15:16,842 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-21 00:15:16,842 INFO L429 AbstractCegarLoop]: === Iteration 5 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2021-01-21 00:15:16,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-21 00:15:16,843 INFO L82 PathProgramCache]: Analyzing trace with hash -184974149, now seen corresponding path program 1 times [2021-01-21 00:15:16,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-21 00:15:16,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160719497] [2021-01-21 00:15:16,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-21 00:15:16,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-21 00:15:17,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-21 00:15:17,675 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160719497] [2021-01-21 00:15:17,675 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-21 00:15:17,675 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-21 00:15:17,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625655117] [2021-01-21 00:15:17,676 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-01-21 00:15:17,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-21 00:15:17,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-01-21 00:15:17,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-01-21 00:15:17,678 INFO L87 Difference]: Start difference. First operand 336 states and 616 transitions. Second operand has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:15:19,795 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 60 [2021-01-21 00:15:20,030 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 72 [2021-01-21 00:15:20,379 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2021-01-21 00:15:20,576 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2021-01-21 00:15:20,765 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2021-01-21 00:15:21,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-21 00:15:21,452 INFO L93 Difference]: Finished difference Result 668 states and 1171 transitions. [2021-01-21 00:15:21,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-01-21 00:15:21,453 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-01-21 00:15:21,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-21 00:15:21,455 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=554, Invalid=2986, Unknown=0, NotChecked=0, Total=3540 [2021-01-21 00:15:21,456 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 1171 transitions. Word has length 55 [2021-01-21 00:15:21,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-21 00:15:21,456 INFO L481 AbstractCegarLoop]: Abstraction has 668 states and 1171 transitions. [2021-01-21 00:15:21,457 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:15:21,457 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 1171 transitions. [2021-01-21 00:15:21,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-21 00:15:21,459 INFO L496 BasicCegarLoop]: Found error trace [2021-01-21 00:15:21,459 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-21 00:15:21,459 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-21 00:15:21,460 INFO L429 AbstractCegarLoop]: === Iteration 6 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2021-01-21 00:15:21,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-21 00:15:21,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1263397061, now seen corresponding path program 2 times [2021-01-21 00:15:21,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-21 00:15:21,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006807673] [2021-01-21 00:15:21,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-21 00:15:21,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-21 00:15:22,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-21 00:15:22,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006807673] [2021-01-21 00:15:22,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-21 00:15:22,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-21 00:15:22,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038942039] [2021-01-21 00:15:22,274 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-01-21 00:15:22,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-21 00:15:22,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-01-21 00:15:22,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=649, Unknown=0, NotChecked=0, Total=702 [2021-01-21 00:15:22,276 INFO L87 Difference]: Start difference. First operand 668 states and 1171 transitions. Second operand has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:15:24,674 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2021-01-21 00:15:24,897 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-01-21 00:15:25,076 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2021-01-21 00:15:25,254 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-01-21 00:15:25,461 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 81 [2021-01-21 00:15:25,667 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-01-21 00:15:26,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-21 00:15:26,415 INFO L93 Difference]: Finished difference Result 811 states and 1399 transitions. [2021-01-21 00:15:26,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-01-21 00:15:26,416 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-01-21 00:15:26,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-21 00:15:26,418 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=549, Invalid=3111, Unknown=0, NotChecked=0, Total=3660 [2021-01-21 00:15:26,418 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 1399 transitions. Word has length 55 [2021-01-21 00:15:26,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-21 00:15:26,418 INFO L481 AbstractCegarLoop]: Abstraction has 811 states and 1399 transitions. [2021-01-21 00:15:26,418 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:15:26,419 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 1399 transitions. [2021-01-21 00:15:26,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-21 00:15:26,420 INFO L496 BasicCegarLoop]: Found error trace [2021-01-21 00:15:26,421 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-21 00:15:26,421 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-21 00:15:26,421 INFO L429 AbstractCegarLoop]: === Iteration 7 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2021-01-21 00:15:26,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-21 00:15:26,422 INFO L82 PathProgramCache]: Analyzing trace with hash -537949099, now seen corresponding path program 3 times [2021-01-21 00:15:26,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-21 00:15:26,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931847908] [2021-01-21 00:15:26,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-21 00:15:26,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-21 00:15:27,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-21 00:15:27,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931847908] [2021-01-21 00:15:27,140 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-21 00:15:27,140 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-21 00:15:27,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367895503] [2021-01-21 00:15:27,141 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-01-21 00:15:27,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-21 00:15:27,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-01-21 00:15:27,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=648, Unknown=0, NotChecked=0, Total=702 [2021-01-21 00:15:27,142 INFO L87 Difference]: Start difference. First operand 811 states and 1399 transitions. Second operand has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:15:29,445 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2021-01-21 00:15:29,677 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-01-21 00:15:29,857 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2021-01-21 00:15:30,032 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-01-21 00:15:30,243 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 81 [2021-01-21 00:15:30,436 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-01-21 00:15:31,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-21 00:15:31,172 INFO L93 Difference]: Finished difference Result 924 states and 1562 transitions. [2021-01-21 00:15:31,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-01-21 00:15:31,173 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-01-21 00:15:31,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-21 00:15:31,176 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=526, Invalid=3014, Unknown=0, NotChecked=0, Total=3540 [2021-01-21 00:15:31,176 INFO L78 Accepts]: Start accepts. Automaton has 924 states and 1562 transitions. Word has length 55 [2021-01-21 00:15:31,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-21 00:15:31,176 INFO L481 AbstractCegarLoop]: Abstraction has 924 states and 1562 transitions. [2021-01-21 00:15:31,177 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:15:31,177 INFO L276 IsEmpty]: Start isEmpty. Operand 924 states and 1562 transitions. [2021-01-21 00:15:31,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-21 00:15:31,180 INFO L496 BasicCegarLoop]: Found error trace [2021-01-21 00:15:31,180 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-21 00:15:31,180 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-21 00:15:31,180 INFO L429 AbstractCegarLoop]: === Iteration 8 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2021-01-21 00:15:31,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-21 00:15:31,181 INFO L82 PathProgramCache]: Analyzing trace with hash -1495420869, now seen corresponding path program 4 times [2021-01-21 00:15:31,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-21 00:15:31,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311698434] [2021-01-21 00:15:31,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-21 00:15:31,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-21 00:15:31,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-21 00:15:31,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311698434] [2021-01-21 00:15:31,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-21 00:15:31,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-21 00:15:31,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392730425] [2021-01-21 00:15:31,915 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-01-21 00:15:31,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-21 00:15:31,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-01-21 00:15:31,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=647, Unknown=0, NotChecked=0, Total=702 [2021-01-21 00:15:31,917 INFO L87 Difference]: Start difference. First operand 924 states and 1562 transitions. Second operand has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:15:34,343 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2021-01-21 00:15:34,558 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-01-21 00:15:34,734 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2021-01-21 00:15:35,088 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 81 [2021-01-21 00:15:35,276 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-01-21 00:15:36,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-21 00:15:36,047 INFO L93 Difference]: Finished difference Result 1037 states and 1725 transitions. [2021-01-21 00:15:36,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-01-21 00:15:36,047 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-01-21 00:15:36,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-21 00:15:36,050 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 536 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=571, Invalid=3211, Unknown=0, NotChecked=0, Total=3782 [2021-01-21 00:15:36,050 INFO L78 Accepts]: Start accepts. Automaton has 1037 states and 1725 transitions. Word has length 55 [2021-01-21 00:15:36,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-21 00:15:36,050 INFO L481 AbstractCegarLoop]: Abstraction has 1037 states and 1725 transitions. [2021-01-21 00:15:36,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:15:36,050 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 1725 transitions. [2021-01-21 00:15:36,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-21 00:15:36,053 INFO L496 BasicCegarLoop]: Found error trace [2021-01-21 00:15:36,054 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-21 00:15:36,054 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-21 00:15:36,054 INFO L429 AbstractCegarLoop]: === Iteration 9 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2021-01-21 00:15:36,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-21 00:15:36,055 INFO L82 PathProgramCache]: Analyzing trace with hash -1656272043, now seen corresponding path program 5 times [2021-01-21 00:15:36,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-21 00:15:36,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425338602] [2021-01-21 00:15:36,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-21 00:15:36,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-21 00:15:36,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-21 00:15:36,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425338602] [2021-01-21 00:15:36,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-21 00:15:36,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-21 00:15:36,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890640422] [2021-01-21 00:15:36,776 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-01-21 00:15:36,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-21 00:15:36,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-01-21 00:15:36,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-01-21 00:15:36,777 INFO L87 Difference]: Start difference. First operand 1037 states and 1725 transitions. Second operand has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:15:39,100 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2021-01-21 00:15:39,315 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-01-21 00:15:39,663 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-01-21 00:15:39,873 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 81 [2021-01-21 00:15:40,061 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-01-21 00:15:40,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-21 00:15:40,749 INFO L93 Difference]: Finished difference Result 1153 states and 1892 transitions. [2021-01-21 00:15:40,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-01-21 00:15:40,749 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-01-21 00:15:40,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-21 00:15:40,751 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 530 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=561, Invalid=3099, Unknown=0, NotChecked=0, Total=3660 [2021-01-21 00:15:40,751 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1892 transitions. Word has length 55 [2021-01-21 00:15:40,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-21 00:15:40,751 INFO L481 AbstractCegarLoop]: Abstraction has 1153 states and 1892 transitions. [2021-01-21 00:15:40,752 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:15:40,752 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1892 transitions. [2021-01-21 00:15:40,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-21 00:15:40,754 INFO L496 BasicCegarLoop]: Found error trace [2021-01-21 00:15:40,754 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-21 00:15:40,755 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-21 00:15:40,755 INFO L429 AbstractCegarLoop]: === Iteration 10 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2021-01-21 00:15:40,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-21 00:15:40,756 INFO L82 PathProgramCache]: Analyzing trace with hash -403484331, now seen corresponding path program 6 times [2021-01-21 00:15:40,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-21 00:15:40,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177590915] [2021-01-21 00:15:40,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-21 00:15:40,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-21 00:15:41,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-21 00:15:41,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177590915] [2021-01-21 00:15:41,494 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-21 00:15:41,494 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-21 00:15:41,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568675044] [2021-01-21 00:15:41,495 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-01-21 00:15:41,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-21 00:15:41,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-01-21 00:15:41,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-01-21 00:15:41,496 INFO L87 Difference]: Start difference. First operand 1153 states and 1892 transitions. Second operand has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:15:43,615 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2021-01-21 00:15:43,814 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2021-01-21 00:15:44,019 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-01-21 00:15:44,362 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2021-01-21 00:15:44,561 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2021-01-21 00:15:44,743 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2021-01-21 00:15:45,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-21 00:15:45,516 INFO L93 Difference]: Finished difference Result 1214 states and 1965 transitions. [2021-01-21 00:15:45,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-01-21 00:15:45,516 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-01-21 00:15:45,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-21 00:15:45,518 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 509 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=528, Invalid=3012, Unknown=0, NotChecked=0, Total=3540 [2021-01-21 00:15:45,518 INFO L78 Accepts]: Start accepts. Automaton has 1214 states and 1965 transitions. Word has length 55 [2021-01-21 00:15:45,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-21 00:15:45,519 INFO L481 AbstractCegarLoop]: Abstraction has 1214 states and 1965 transitions. [2021-01-21 00:15:45,519 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:15:45,519 INFO L276 IsEmpty]: Start isEmpty. Operand 1214 states and 1965 transitions. [2021-01-21 00:15:45,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-21 00:15:45,522 INFO L496 BasicCegarLoop]: Found error trace [2021-01-21 00:15:45,522 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-21 00:15:45,522 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-21 00:15:45,523 INFO L429 AbstractCegarLoop]: === Iteration 11 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2021-01-21 00:15:45,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-21 00:15:45,523 INFO L82 PathProgramCache]: Analyzing trace with hash -495880901, now seen corresponding path program 7 times [2021-01-21 00:15:45,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-21 00:15:45,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085699040] [2021-01-21 00:15:45,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-21 00:15:45,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-21 00:15:46,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-21 00:15:46,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085699040] [2021-01-21 00:15:46,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-21 00:15:46,285 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-21 00:15:46,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076806950] [2021-01-21 00:15:46,286 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-01-21 00:15:46,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-21 00:15:46,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-01-21 00:15:46,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-01-21 00:15:46,288 INFO L87 Difference]: Start difference. First operand 1214 states and 1965 transitions. Second operand has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:15:48,133 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2021-01-21 00:15:48,538 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-01-21 00:15:48,748 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2021-01-21 00:15:49,073 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-01-21 00:15:49,263 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-01-21 00:15:49,472 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2021-01-21 00:15:49,664 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-01-21 00:15:50,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-21 00:15:50,332 INFO L93 Difference]: Finished difference Result 1264 states and 2028 transitions. [2021-01-21 00:15:50,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-01-21 00:15:50,332 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-01-21 00:15:50,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-21 00:15:50,334 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 530 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=560, Invalid=3100, Unknown=0, NotChecked=0, Total=3660 [2021-01-21 00:15:50,334 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 2028 transitions. Word has length 55 [2021-01-21 00:15:50,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-21 00:15:50,334 INFO L481 AbstractCegarLoop]: Abstraction has 1264 states and 2028 transitions. [2021-01-21 00:15:50,334 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:15:50,335 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 2028 transitions. [2021-01-21 00:15:50,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-21 00:15:50,337 INFO L496 BasicCegarLoop]: Found error trace [2021-01-21 00:15:50,337 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-21 00:15:50,337 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-01-21 00:15:50,337 INFO L429 AbstractCegarLoop]: === Iteration 12 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2021-01-21 00:15:50,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-21 00:15:50,338 INFO L82 PathProgramCache]: Analyzing trace with hash -1298981035, now seen corresponding path program 8 times [2021-01-21 00:15:50,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-21 00:15:50,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015145380] [2021-01-21 00:15:50,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-21 00:15:50,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-21 00:15:50,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-21 00:15:50,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015145380] [2021-01-21 00:15:50,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-21 00:15:50,997 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-21 00:15:50,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569753272] [2021-01-21 00:15:50,998 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-01-21 00:15:50,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-21 00:15:50,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-01-21 00:15:50,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-01-21 00:15:50,999 INFO L87 Difference]: Start difference. First operand 1264 states and 2028 transitions. Second operand has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:15:53,028 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2021-01-21 00:15:53,235 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-01-21 00:15:53,420 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2021-01-21 00:15:53,603 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-01-21 00:15:53,825 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2021-01-21 00:15:54,051 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 84 [2021-01-21 00:15:54,232 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-01-21 00:15:54,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-21 00:15:54,848 INFO L93 Difference]: Finished difference Result 1298 states and 2067 transitions. [2021-01-21 00:15:54,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-01-21 00:15:54,849 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-01-21 00:15:54,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-21 00:15:54,850 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 471 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=524, Invalid=2898, Unknown=0, NotChecked=0, Total=3422 [2021-01-21 00:15:54,851 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 2067 transitions. Word has length 55 [2021-01-21 00:15:54,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-21 00:15:54,851 INFO L481 AbstractCegarLoop]: Abstraction has 1298 states and 2067 transitions. [2021-01-21 00:15:54,851 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:15:54,851 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 2067 transitions. [2021-01-21 00:15:54,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-21 00:15:54,853 INFO L496 BasicCegarLoop]: Found error trace [2021-01-21 00:15:54,853 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-21 00:15:54,854 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-01-21 00:15:54,854 INFO L429 AbstractCegarLoop]: === Iteration 13 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2021-01-21 00:15:54,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-21 00:15:54,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1070338619, now seen corresponding path program 9 times [2021-01-21 00:15:54,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-21 00:15:54,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102581967] [2021-01-21 00:15:54,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-21 00:15:54,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-21 00:15:55,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-21 00:15:55,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102581967] [2021-01-21 00:15:55,702 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-21 00:15:55,702 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-01-21 00:15:55,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513132209] [2021-01-21 00:15:55,703 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-01-21 00:15:55,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-21 00:15:55,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-01-21 00:15:55,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2021-01-21 00:15:55,705 INFO L87 Difference]: Start difference. First operand 1298 states and 2067 transitions. Second operand has 30 states, 29 states have (on average 1.896551724137931) internal successors, (55), 30 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:15:56,753 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-01-21 00:15:58,077 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-01-21 00:15:58,345 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2021-01-21 00:15:58,600 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2021-01-21 00:15:58,838 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2021-01-21 00:15:59,077 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2021-01-21 00:15:59,334 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 94 [2021-01-21 00:15:59,570 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2021-01-21 00:15:59,869 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 97 [2021-01-21 00:16:00,075 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2021-01-21 00:16:00,315 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2021-01-21 00:16:00,582 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2021-01-21 00:16:01,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-21 00:16:01,501 INFO L93 Difference]: Finished difference Result 1328 states and 2100 transitions. [2021-01-21 00:16:01,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-01-21 00:16:01,501 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 1.896551724137931) internal successors, (55), 30 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-01-21 00:16:01,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-21 00:16:01,505 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 845 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=724, Invalid=4246, Unknown=0, NotChecked=0, Total=4970 [2021-01-21 00:16:01,505 INFO L78 Accepts]: Start accepts. Automaton has 1328 states and 2100 transitions. Word has length 55 [2021-01-21 00:16:01,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-21 00:16:01,506 INFO L481 AbstractCegarLoop]: Abstraction has 1328 states and 2100 transitions. [2021-01-21 00:16:01,506 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 30 states, 29 states have (on average 1.896551724137931) internal successors, (55), 30 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:16:01,506 INFO L276 IsEmpty]: Start isEmpty. Operand 1328 states and 2100 transitions. [2021-01-21 00:16:01,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-21 00:16:01,508 INFO L496 BasicCegarLoop]: Found error trace [2021-01-21 00:16:01,508 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-21 00:16:01,509 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-01-21 00:16:01,509 INFO L429 AbstractCegarLoop]: === Iteration 14 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2021-01-21 00:16:01,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-21 00:16:01,510 INFO L82 PathProgramCache]: Analyzing trace with hash -1511491577, now seen corresponding path program 10 times [2021-01-21 00:16:01,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-21 00:16:01,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118269043] [2021-01-21 00:16:01,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-21 00:16:01,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-21 00:16:02,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-21 00:16:02,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118269043] [2021-01-21 00:16:02,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-21 00:16:02,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-21 00:16:02,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980947723] [2021-01-21 00:16:02,220 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-01-21 00:16:02,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-21 00:16:02,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-01-21 00:16:02,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-01-21 00:16:02,221 INFO L87 Difference]: Start difference. First operand 1328 states and 2100 transitions. Second operand has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:16:04,504 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2021-01-21 00:16:04,730 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2021-01-21 00:16:04,912 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2021-01-21 00:16:05,105 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2021-01-21 00:16:05,318 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2021-01-21 00:16:05,526 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2021-01-21 00:16:06,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-21 00:16:06,245 INFO L93 Difference]: Finished difference Result 1356 states and 2128 transitions. [2021-01-21 00:16:06,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-01-21 00:16:06,246 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-01-21 00:16:06,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-21 00:16:06,248 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=537, Invalid=3003, Unknown=0, NotChecked=0, Total=3540 [2021-01-21 00:16:06,248 INFO L78 Accepts]: Start accepts. Automaton has 1356 states and 2128 transitions. Word has length 55 [2021-01-21 00:16:06,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-21 00:16:06,249 INFO L481 AbstractCegarLoop]: Abstraction has 1356 states and 2128 transitions. [2021-01-21 00:16:06,249 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:16:06,249 INFO L276 IsEmpty]: Start isEmpty. Operand 1356 states and 2128 transitions. [2021-01-21 00:16:06,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-21 00:16:06,251 INFO L496 BasicCegarLoop]: Found error trace [2021-01-21 00:16:06,251 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-21 00:16:06,251 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-01-21 00:16:06,251 INFO L429 AbstractCegarLoop]: === Iteration 15 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2021-01-21 00:16:06,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-21 00:16:06,252 INFO L82 PathProgramCache]: Analyzing trace with hash 1692456987, now seen corresponding path program 11 times [2021-01-21 00:16:06,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-21 00:16:06,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413776075] [2021-01-21 00:16:06,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-21 00:16:06,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-21 00:16:06,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-21 00:16:06,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413776075] [2021-01-21 00:16:06,934 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-21 00:16:06,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-21 00:16:06,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873804949] [2021-01-21 00:16:06,935 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-01-21 00:16:06,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-21 00:16:06,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-01-21 00:16:06,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=650, Unknown=0, NotChecked=0, Total=702 [2021-01-21 00:16:06,938 INFO L87 Difference]: Start difference. First operand 1356 states and 2128 transitions. Second operand has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:16:09,309 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2021-01-21 00:16:09,522 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-01-21 00:16:09,702 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2021-01-21 00:16:09,886 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-01-21 00:16:10,095 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 81 [2021-01-21 00:16:10,286 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-01-21 00:16:11,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-21 00:16:11,084 INFO L93 Difference]: Finished difference Result 1493 states and 2343 transitions. [2021-01-21 00:16:11,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-01-21 00:16:11,085 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-01-21 00:16:11,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-21 00:16:11,087 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 399 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=522, Invalid=3018, Unknown=0, NotChecked=0, Total=3540 [2021-01-21 00:16:11,087 INFO L78 Accepts]: Start accepts. Automaton has 1493 states and 2343 transitions. Word has length 55 [2021-01-21 00:16:11,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-21 00:16:11,087 INFO L481 AbstractCegarLoop]: Abstraction has 1493 states and 2343 transitions. [2021-01-21 00:16:11,087 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:16:11,087 INFO L276 IsEmpty]: Start isEmpty. Operand 1493 states and 2343 transitions. [2021-01-21 00:16:11,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-21 00:16:11,090 INFO L496 BasicCegarLoop]: Found error trace [2021-01-21 00:16:11,090 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-21 00:16:11,090 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-01-21 00:16:11,091 INFO L429 AbstractCegarLoop]: === Iteration 16 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2021-01-21 00:16:11,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-21 00:16:11,091 INFO L82 PathProgramCache]: Analyzing trace with hash -277812201, now seen corresponding path program 12 times [2021-01-21 00:16:11,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-21 00:16:11,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514646899] [2021-01-21 00:16:11,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-21 00:16:11,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-21 00:16:11,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-21 00:16:11,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514646899] [2021-01-21 00:16:11,781 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-21 00:16:11,781 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-21 00:16:11,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956665269] [2021-01-21 00:16:11,781 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-01-21 00:16:11,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-21 00:16:11,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-01-21 00:16:11,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-01-21 00:16:11,783 INFO L87 Difference]: Start difference. First operand 1493 states and 2343 transitions. Second operand has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:16:13,991 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2021-01-21 00:16:14,249 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-01-21 00:16:14,424 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2021-01-21 00:16:14,617 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-01-21 00:16:14,826 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 81 [2021-01-21 00:16:15,014 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-01-21 00:16:15,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-21 00:16:15,740 INFO L93 Difference]: Finished difference Result 1636 states and 2571 transitions. [2021-01-21 00:16:15,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-01-21 00:16:15,741 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-01-21 00:16:15,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-21 00:16:15,743 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=551, Invalid=2989, Unknown=0, NotChecked=0, Total=3540 [2021-01-21 00:16:15,743 INFO L78 Accepts]: Start accepts. Automaton has 1636 states and 2571 transitions. Word has length 55 [2021-01-21 00:16:15,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-21 00:16:15,743 INFO L481 AbstractCegarLoop]: Abstraction has 1636 states and 2571 transitions. [2021-01-21 00:16:15,744 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:16:15,744 INFO L276 IsEmpty]: Start isEmpty. Operand 1636 states and 2571 transitions. [2021-01-21 00:16:15,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-21 00:16:15,746 INFO L496 BasicCegarLoop]: Found error trace [2021-01-21 00:16:15,746 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-21 00:16:15,746 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-01-21 00:16:15,746 INFO L429 AbstractCegarLoop]: === Iteration 17 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2021-01-21 00:16:15,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-21 00:16:15,747 INFO L82 PathProgramCache]: Analyzing trace with hash -2115245859, now seen corresponding path program 13 times [2021-01-21 00:16:15,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-21 00:16:15,747 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804023117] [2021-01-21 00:16:15,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-21 00:16:15,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-21 00:16:16,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-21 00:16:16,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804023117] [2021-01-21 00:16:16,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-21 00:16:16,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-21 00:16:16,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864529054] [2021-01-21 00:16:16,434 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-01-21 00:16:16,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-21 00:16:16,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-01-21 00:16:16,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-01-21 00:16:16,435 INFO L87 Difference]: Start difference. First operand 1636 states and 2571 transitions. Second operand has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:16:18,586 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2021-01-21 00:16:18,812 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2021-01-21 00:16:18,984 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2021-01-21 00:16:19,174 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2021-01-21 00:16:19,382 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2021-01-21 00:16:19,569 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2021-01-21 00:16:20,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-21 00:16:20,324 INFO L93 Difference]: Finished difference Result 1785 states and 2812 transitions. [2021-01-21 00:16:20,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-01-21 00:16:20,325 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-01-21 00:16:20,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-21 00:16:20,326 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=552, Invalid=2988, Unknown=0, NotChecked=0, Total=3540 [2021-01-21 00:16:20,327 INFO L78 Accepts]: Start accepts. Automaton has 1785 states and 2812 transitions. Word has length 55 [2021-01-21 00:16:20,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-21 00:16:20,327 INFO L481 AbstractCegarLoop]: Abstraction has 1785 states and 2812 transitions. [2021-01-21 00:16:20,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:16:20,327 INFO L276 IsEmpty]: Start isEmpty. Operand 1785 states and 2812 transitions. [2021-01-21 00:16:20,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-21 00:16:20,329 INFO L496 BasicCegarLoop]: Found error trace [2021-01-21 00:16:20,329 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-21 00:16:20,329 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-01-21 00:16:20,329 INFO L429 AbstractCegarLoop]: === Iteration 18 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2021-01-21 00:16:20,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-21 00:16:20,330 INFO L82 PathProgramCache]: Analyzing trace with hash 961175989, now seen corresponding path program 14 times [2021-01-21 00:16:20,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-21 00:16:20,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41434380] [2021-01-21 00:16:20,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-21 00:16:20,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-21 00:16:20,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-21 00:16:20,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41434380] [2021-01-21 00:16:20,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-21 00:16:20,997 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-21 00:16:20,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976714187] [2021-01-21 00:16:20,998 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-01-21 00:16:20,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-21 00:16:20,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-01-21 00:16:20,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-01-21 00:16:20,999 INFO L87 Difference]: Start difference. First operand 1785 states and 2812 transitions. Second operand has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:16:23,138 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-01-21 00:16:23,363 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-01-21 00:16:23,538 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2021-01-21 00:16:23,730 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2021-01-21 00:16:23,938 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2021-01-21 00:16:24,139 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2021-01-21 00:16:24,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-21 00:16:24,867 INFO L93 Difference]: Finished difference Result 1817 states and 2844 transitions. [2021-01-21 00:16:24,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-01-21 00:16:24,868 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-01-21 00:16:24,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-21 00:16:24,869 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=553, Invalid=2987, Unknown=0, NotChecked=0, Total=3540 [2021-01-21 00:16:24,870 INFO L78 Accepts]: Start accepts. Automaton has 1817 states and 2844 transitions. Word has length 55 [2021-01-21 00:16:24,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-21 00:16:24,870 INFO L481 AbstractCegarLoop]: Abstraction has 1817 states and 2844 transitions. [2021-01-21 00:16:24,870 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:16:24,870 INFO L276 IsEmpty]: Start isEmpty. Operand 1817 states and 2844 transitions. [2021-01-21 00:16:24,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-21 00:16:24,873 INFO L496 BasicCegarLoop]: Found error trace [2021-01-21 00:16:24,873 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-21 00:16:24,874 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-01-21 00:16:24,874 INFO L429 AbstractCegarLoop]: === Iteration 19 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2021-01-21 00:16:24,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-21 00:16:24,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1736301819, now seen corresponding path program 15 times [2021-01-21 00:16:24,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-21 00:16:24,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282161602] [2021-01-21 00:16:24,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-21 00:16:24,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-21 00:16:25,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-21 00:16:25,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282161602] [2021-01-21 00:16:25,502 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-21 00:16:25,502 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-21 00:16:25,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695690581] [2021-01-21 00:16:25,503 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-01-21 00:16:25,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-21 00:16:25,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-01-21 00:16:25,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=645, Unknown=0, NotChecked=0, Total=702 [2021-01-21 00:16:25,504 INFO L87 Difference]: Start difference. First operand 1817 states and 2844 transitions. Second operand has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:16:28,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-21 00:16:28,423 INFO L93 Difference]: Finished difference Result 2028 states and 3180 transitions. [2021-01-21 00:16:28,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-01-21 00:16:28,423 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-01-21 00:16:28,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-21 00:16:28,426 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 527 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=555, Invalid=2985, Unknown=0, NotChecked=0, Total=3540 [2021-01-21 00:16:28,426 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 3180 transitions. Word has length 55 [2021-01-21 00:16:28,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-21 00:16:28,426 INFO L481 AbstractCegarLoop]: Abstraction has 2028 states and 3180 transitions. [2021-01-21 00:16:28,426 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:16:28,426 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 3180 transitions. [2021-01-21 00:16:28,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-21 00:16:28,429 INFO L496 BasicCegarLoop]: Found error trace [2021-01-21 00:16:28,429 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-21 00:16:28,429 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-01-21 00:16:28,429 INFO L429 AbstractCegarLoop]: === Iteration 20 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2021-01-21 00:16:28,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-21 00:16:28,430 INFO L82 PathProgramCache]: Analyzing trace with hash -503667429, now seen corresponding path program 16 times [2021-01-21 00:16:28,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-21 00:16:28,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284983938] [2021-01-21 00:16:28,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-21 00:16:28,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-21 00:16:29,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-21 00:16:29,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284983938] [2021-01-21 00:16:29,108 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-21 00:16:29,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-21 00:16:29,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518479431] [2021-01-21 00:16:29,109 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-01-21 00:16:29,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-21 00:16:29,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-01-21 00:16:29,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=645, Unknown=0, NotChecked=0, Total=702 [2021-01-21 00:16:29,110 INFO L87 Difference]: Start difference. First operand 2028 states and 3180 transitions. Second operand has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:16:32,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-21 00:16:32,165 INFO L93 Difference]: Finished difference Result 2243 states and 3522 transitions. [2021-01-21 00:16:32,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-01-21 00:16:32,165 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-01-21 00:16:32,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-21 00:16:32,167 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 527 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=555, Invalid=2985, Unknown=0, NotChecked=0, Total=3540 [2021-01-21 00:16:32,167 INFO L78 Accepts]: Start accepts. Automaton has 2243 states and 3522 transitions. Word has length 55 [2021-01-21 00:16:32,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-21 00:16:32,167 INFO L481 AbstractCegarLoop]: Abstraction has 2243 states and 3522 transitions. [2021-01-21 00:16:32,167 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:16:32,167 INFO L276 IsEmpty]: Start isEmpty. Operand 2243 states and 3522 transitions. [2021-01-21 00:16:32,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-21 00:16:32,171 INFO L496 BasicCegarLoop]: Found error trace [2021-01-21 00:16:32,171 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-21 00:16:32,171 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-01-21 00:16:32,171 INFO L429 AbstractCegarLoop]: === Iteration 21 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2021-01-21 00:16:32,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-21 00:16:32,172 INFO L82 PathProgramCache]: Analyzing trace with hash -1412956965, now seen corresponding path program 17 times [2021-01-21 00:16:32,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-21 00:16:32,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141681204] [2021-01-21 00:16:32,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-21 00:16:32,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-21 00:16:33,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-21 00:16:33,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141681204] [2021-01-21 00:16:33,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-21 00:16:33,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-01-21 00:16:33,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950132815] [2021-01-21 00:16:33,092 INFO L461 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-01-21 00:16:33,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-21 00:16:33,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-01-21 00:16:33,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=752, Unknown=0, NotChecked=0, Total=812 [2021-01-21 00:16:33,093 INFO L87 Difference]: Start difference. First operand 2243 states and 3522 transitions. Second operand has 29 states, 28 states have (on average 1.9642857142857142) internal successors, (55), 29 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:16:34,707 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2021-01-21 00:16:35,099 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2021-01-21 00:16:35,396 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2021-01-21 00:16:35,675 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2021-01-21 00:16:35,956 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 79 [2021-01-21 00:16:36,736 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-01-21 00:16:38,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-21 00:16:38,427 INFO L93 Difference]: Finished difference Result 2242 states and 3521 transitions. [2021-01-21 00:16:38,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-01-21 00:16:38,427 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 1.9642857142857142) internal successors, (55), 29 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-01-21 00:16:38,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-21 00:16:38,429 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 575 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=589, Invalid=3443, Unknown=0, NotChecked=0, Total=4032 [2021-01-21 00:16:38,429 INFO L78 Accepts]: Start accepts. Automaton has 2242 states and 3521 transitions. Word has length 55 [2021-01-21 00:16:38,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-21 00:16:38,429 INFO L481 AbstractCegarLoop]: Abstraction has 2242 states and 3521 transitions. [2021-01-21 00:16:38,429 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 29 states, 28 states have (on average 1.9642857142857142) internal successors, (55), 29 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-21 00:16:38,429 INFO L276 IsEmpty]: Start isEmpty. Operand 2242 states and 3521 transitions. [2021-01-21 00:16:38,432 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-21 00:16:38,432 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-01-21 00:16:38,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.01 12:16:38 BasicIcfg [2021-01-21 00:16:38,437 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-21 00:16:38,438 INFO L168 Benchmark]: Toolchain (without parser) took 87324.55 ms. Allocated memory was 302.0 MB in the beginning and 629.1 MB in the end (delta: 327.2 MB). Free memory was 276.8 MB in the beginning and 365.7 MB in the end (delta: -88.9 MB). Peak memory consumption was 241.0 MB. Max. memory is 16.0 GB. [2021-01-21 00:16:38,438 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-21 00:16:38,439 INFO L168 Benchmark]: CACSL2BoogieTranslator took 239.41 ms. Allocated memory is still 302.0 MB. Free memory was 276.6 MB in the beginning and 267.7 MB in the end (delta: 8.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-01-21 00:16:38,439 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.06 ms. Allocated memory is still 302.0 MB. Free memory was 267.7 MB in the beginning and 266.2 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-21 00:16:38,439 INFO L168 Benchmark]: Boogie Preprocessor took 25.34 ms. Allocated memory is still 302.0 MB. Free memory was 266.2 MB in the beginning and 265.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-21 00:16:38,440 INFO L168 Benchmark]: RCFGBuilder took 790.97 ms. Allocated memory is still 302.0 MB. Free memory was 265.0 MB in the beginning and 244.5 MB in the end (delta: 20.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-01-21 00:16:38,440 INFO L168 Benchmark]: TraceAbstraction took 86217.04 ms. Allocated memory was 302.0 MB in the beginning and 629.1 MB in the end (delta: 327.2 MB). Free memory was 244.0 MB in the beginning and 365.7 MB in the end (delta: -121.7 MB). Peak memory consumption was 207.5 MB. Max. memory is 16.0 GB. [2021-01-21 00:16:38,443 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 239.41 ms. Allocated memory is still 302.0 MB. Free memory was 276.6 MB in the beginning and 267.7 MB in the end (delta: 8.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 42.06 ms. Allocated memory is still 302.0 MB. Free memory was 267.7 MB in the beginning and 266.2 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 25.34 ms. Allocated memory is still 302.0 MB. Free memory was 266.2 MB in the beginning and 265.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 790.97 ms. Allocated memory is still 302.0 MB. Free memory was 265.0 MB in the beginning and 244.5 MB in the end (delta: 20.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 86217.04 ms. Allocated memory was 302.0 MB in the beginning and 629.1 MB in the end (delta: 327.2 MB). Free memory was 244.0 MB in the beginning and 365.7 MB in the end (delta: -121.7 MB). Peak memory consumption was 207.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 45]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 69 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 85.8s, OverallIterations: 21, TraceHistogramMax: 1, AutomataDifference: 71.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1989 SDtfs, 6331 SDslu, 25476 SDs, 0 SdLazy, 25489 SolverSat, 848 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1122 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 1081 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9019 ImplicationChecksByTransitivity, 58.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2243occurred in iteration=20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 12.8s InterpolantComputationTime, 1080 NumberOfCodeBlocks, 1080 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1059 ConstructedInterpolants, 0 QuantifiedInterpolants, 580051 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...