/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf -i ../../../trunk/examples/concurrent/pthreads/forkMultipleTimes.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 17:41:00,569 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 17:41:00,572 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 17:41:00,609 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 17:41:00,610 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 17:41:00,611 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 17:41:00,613 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 17:41:00,616 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 17:41:00,619 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 17:41:00,636 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 17:41:00,637 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 17:41:00,638 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 17:41:00,639 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 17:41:00,640 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 17:41:00,642 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 17:41:00,643 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 17:41:00,644 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 17:41:00,645 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 17:41:00,648 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 17:41:00,650 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 17:41:00,652 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 17:41:00,655 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 17:41:00,656 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 17:41:00,664 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 17:41:00,667 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-09 17:41:00,668 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-09 17:41:00,671 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-09 17:41:00,673 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-09 17:41:00,683 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-09 17:41:00,684 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-09 17:41:00,685 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 17:41:00,686 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 17:41:00,689 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 17:41:00,690 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 17:41:00,694 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 17:41:00,694 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 17:41:00,695 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 17:41:00,695 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 17:41:00,696 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 17:41:00,704 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 17:41:00,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 17:41:00,706 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf [2020-11-09 17:41:00,760 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 17:41:00,761 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 17:41:00,765 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 17:41:00,765 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 17:41:00,765 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 17:41:00,766 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 17:41:00,767 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 17:41:00,767 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 17:41:00,767 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 17:41:00,767 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 17:41:00,769 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 17:41:00,769 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 17:41:00,769 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 17:41:00,770 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 17:41:00,770 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 17:41:00,770 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 17:41:00,770 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 17:41:00,771 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 17:41:00,771 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 17:41:00,771 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 17:41:00,772 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 17:41:00,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 17:41:00,772 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 17:41:00,772 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 17:41:00,773 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 17:41:00,773 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 17:41:00,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 17:41:00,774 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 17:41:00,774 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 17:41:00,774 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 17:41:00,774 INFO L138 SettingsManager]: * Interpolant automaton=MCR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 17:41:01,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 17:41:01,281 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 17:41:01,285 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 17:41:01,286 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 17:41:01,287 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 17:41:01,288 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/forkMultipleTimes.c [2020-11-09 17:41:01,369 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c8dff7e8/7d56a746bf494d1fb0216684f867f63c/FLAG010df58b6 [2020-11-09 17:41:01,931 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 17:41:01,931 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/forkMultipleTimes.c [2020-11-09 17:41:01,932 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2020-11-09 17:41:01,932 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2020-11-09 17:41:01,975 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c8dff7e8/7d56a746bf494d1fb0216684f867f63c/FLAG010df58b6 [2020-11-09 17:41:02,295 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c8dff7e8/7d56a746bf494d1fb0216684f867f63c [2020-11-09 17:41:02,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 17:41:02,308 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 17:41:02,310 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 17:41:02,310 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 17:41:02,314 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 17:41:02,315 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:41:02" (1/1) ... [2020-11-09 17:41:02,318 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@501e98de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:41:02, skipping insertion in model container [2020-11-09 17:41:02,319 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:41:02" (1/1) ... [2020-11-09 17:41:02,327 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 17:41:02,343 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 17:41:02,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:41:02,547 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 17:41:02,576 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:41:02,599 INFO L208 MainTranslator]: Completed translation [2020-11-09 17:41:02,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:41:02 WrapperNode [2020-11-09 17:41:02,601 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 17:41:02,602 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 17:41:02,605 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 17:41:02,605 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 17:41:02,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:41:02" (1/1) ... [2020-11-09 17:41:02,628 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:41:02" (1/1) ... [2020-11-09 17:41:02,692 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 17:41:02,693 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 17:41:02,693 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 17:41:02,693 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 17:41:02,705 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:41:02" (1/1) ... [2020-11-09 17:41:02,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:41:02" (1/1) ... [2020-11-09 17:41:02,723 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:41:02" (1/1) ... [2020-11-09 17:41:02,724 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:41:02" (1/1) ... [2020-11-09 17:41:02,731 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:41:02" (1/1) ... [2020-11-09 17:41:02,734 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:41:02" (1/1) ... [2020-11-09 17:41:02,736 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:41:02" (1/1) ... [2020-11-09 17:41:02,738 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 17:41:02,740 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 17:41:02,740 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 17:41:02,740 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 17:41:02,741 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:41:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 17:41:02,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 17:41:02,821 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-11-09 17:41:02,821 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-11-09 17:41:02,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 17:41:02,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 17:41:02,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-09 17:41:02,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 17:41:02,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 17:41:02,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 17:41:02,825 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 17:41:03,193 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 17:41:03,193 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-11-09 17:41:03,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:41:03 BoogieIcfgContainer [2020-11-09 17:41:03,196 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 17:41:03,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 17:41:03,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 17:41:03,201 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 17:41:03,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:41:02" (1/3) ... [2020-11-09 17:41:03,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@184be6d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:41:03, skipping insertion in model container [2020-11-09 17:41:03,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:41:02" (2/3) ... [2020-11-09 17:41:03,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@184be6d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:41:03, skipping insertion in model container [2020-11-09 17:41:03,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:41:03" (3/3) ... [2020-11-09 17:41:03,205 INFO L111 eAbstractionObserver]: Analyzing ICFG forkMultipleTimes.c [2020-11-09 17:41:03,224 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 17:41:03,224 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 17:41:03,228 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 17:41:03,229 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 17:41:03,266 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,266 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,266 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,267 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,267 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,267 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,267 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,267 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,268 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,268 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,268 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,268 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,269 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,269 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,269 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,269 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,270 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,270 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,270 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,270 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,270 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,271 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,271 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,271 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,271 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,272 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,272 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,272 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,272 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,272 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,273 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,273 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,273 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,273 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,274 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,274 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,274 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,274 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,275 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,275 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,275 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,275 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,275 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,276 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,276 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,276 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,276 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,277 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,277 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,277 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,277 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,278 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,278 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,278 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,278 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,279 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,279 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,279 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,279 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,279 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,280 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,280 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,280 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,280 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,281 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,281 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,281 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,281 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,282 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,282 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,282 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,282 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,282 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,283 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,283 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,283 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,283 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,284 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,284 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,284 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,284 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,285 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,285 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,285 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,285 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,286 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,286 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,286 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,286 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,286 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,289 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,290 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,290 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,290 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,291 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,291 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,291 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,299 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,300 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,300 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,300 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,301 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,301 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,301 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,304 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,305 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,305 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,305 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,305 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,306 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,306 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:41:03,328 INFO L149 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2020-11-09 17:41:03,342 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 17:41:03,365 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 17:41:03,366 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 17:41:03,366 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 17:41:03,366 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 17:41:03,366 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 17:41:03,366 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 17:41:03,366 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 17:41:03,366 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 17:41:03,381 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 17:41:03,382 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 77 transitions, 196 flow [2020-11-09 17:41:03,386 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 77 transitions, 196 flow [2020-11-09 17:41:03,389 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 77 transitions, 196 flow [2020-11-09 17:41:03,506 INFO L129 PetriNetUnfolder]: 5/85 cut-off events. [2020-11-09 17:41:03,507 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2020-11-09 17:41:03,512 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 85 events. 5/85 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 114 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 50. Up to 6 conditions per place. [2020-11-09 17:41:03,515 INFO L116 LiptonReduction]: Number of co-enabled transitions 1008 [2020-11-09 17:41:04,057 WARN L194 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-11-09 17:41:05,327 WARN L194 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 29 [2020-11-09 17:41:06,073 WARN L194 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2020-11-09 17:41:06,183 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-11-09 17:41:06,425 WARN L194 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2020-11-09 17:41:06,588 INFO L131 LiptonReduction]: Checked pairs total: 4010 [2020-11-09 17:41:06,589 INFO L133 LiptonReduction]: Total number of compositions: 43 [2020-11-09 17:41:06,596 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 35 transitions, 112 flow [2020-11-09 17:41:06,633 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 354 states. [2020-11-09 17:41:06,635 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states. [2020-11-09 17:41:06,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-09 17:41:06,653 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:41:06,654 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:41:06,654 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-11-09 17:41:06,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:41:06,662 INFO L82 PathProgramCache]: Analyzing trace with hash -126150362, now seen corresponding path program 1 times [2020-11-09 17:41:06,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:41:06,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846066777] [2020-11-09 17:41:06,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:41:06,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:41:07,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:41:07,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846066777] [2020-11-09 17:41:07,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:41:07,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-09 17:41:07,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2072814770] [2020-11-09 17:41:07,055 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:41:07,064 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:41:07,095 INFO L252 McrAutomatonBuilder]: Finished intersection with 48 states and 69 transitions. [2020-11-09 17:41:07,095 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:41:07,205 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:41:07,206 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-09 17:41:07,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:41:07,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-09 17:41:07,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-11-09 17:41:07,226 INFO L87 Difference]: Start difference. First operand 354 states. Second operand 8 states. [2020-11-09 17:41:07,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:41:07,535 INFO L93 Difference]: Finished difference Result 449 states and 1088 transitions. [2020-11-09 17:41:07,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-09 17:41:07,537 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-11-09 17:41:07,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:41:07,567 INFO L225 Difference]: With dead ends: 449 [2020-11-09 17:41:07,568 INFO L226 Difference]: Without dead ends: 393 [2020-11-09 17:41:07,569 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-11-09 17:41:07,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2020-11-09 17:41:07,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 366. [2020-11-09 17:41:07,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2020-11-09 17:41:07,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 906 transitions. [2020-11-09 17:41:07,693 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 906 transitions. Word has length 25 [2020-11-09 17:41:07,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:41:07,694 INFO L481 AbstractCegarLoop]: Abstraction has 366 states and 906 transitions. [2020-11-09 17:41:07,694 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-09 17:41:07,694 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 906 transitions. [2020-11-09 17:41:07,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-09 17:41:07,705 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:41:07,706 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:41:07,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 17:41:07,706 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-11-09 17:41:07,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:41:07,710 INFO L82 PathProgramCache]: Analyzing trace with hash -1342328380, now seen corresponding path program 1 times [2020-11-09 17:41:07,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:41:07,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182496003] [2020-11-09 17:41:07,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:41:07,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:41:08,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:41:08,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182496003] [2020-11-09 17:41:08,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:41:08,581 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-11-09 17:41:08,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1699053675] [2020-11-09 17:41:08,582 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:41:08,588 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:41:08,604 INFO L252 McrAutomatonBuilder]: Finished intersection with 44 states and 61 transitions. [2020-11-09 17:41:08,605 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:41:09,309 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 3 new interpolants: [1997#(and (or (not (= fooThread1of1ForFork2_~x~0.base |ULTIMATE.start_main_~#third_thread_id~0.base|)) (= |ULTIMATE.start_main_~#third_thread_id~0.offset| |fooThread1of1ForFork1_#in~n.offset|)) (or (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|) (not (= fooThread1of1ForFork2_~x~0.base |ULTIMATE.start_main_~#third_thread_id~0.base|))) (or (not (= fooThread1of1ForFork2_~x~0.base |ULTIMATE.start_main_~#third_thread_id~0.base|)) (= fooThread1of1ForFork0_thidvar0 0)) (not (= (+ ~counter~0 1) 0)) (or (= fooThread1of1ForFork2_~x~0.base |ULTIMATE.start_main_~#third_thread_id~0.base|) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0))) (or (= fooThread1of1ForFork2_~x~0.base |ULTIMATE.start_main_~#third_thread_id~0.base|) (= fooThread1of1ForFork2_~x~0.base |fooThread1of1ForFork0_#in~n.base|)) (or (= fooThread1of1ForFork2_~x~0.base |ULTIMATE.start_main_~#third_thread_id~0.base|) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|)))), 1998#(and (or (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork2_#in~n.base|)) (= fooThread1of1ForFork0_thidvar0 0)) (not (= (+ ~counter~0 1) 0)) (or (= |fooThread1of1ForFork0_#in~n.base| |fooThread1of1ForFork2_#in~n.base|) (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork2_#in~n.base|)) (or (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork2_#in~n.base|)) (= |fooThread1of1ForFork1_#in~n.base| |fooThread1of1ForFork2_#in~n.base|) (or (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|)) (= |ULTIMATE.start_main_~#third_thread_id~0.offset| |fooThread1of1ForFork1_#in~n.offset|))), 1999#(and (or (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|)) (= fooThread1of1ForFork0_thidvar0 0)) (or (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|) (= |ULTIMATE.start_main_~#val~0.base| |fooThread1of1ForFork0_#in~n.base|)) (not (= (+ ~counter~0 1) 0)) (= |ULTIMATE.start_main_~#val~0.base| |fooThread1of1ForFork1_#in~n.base|) (or (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|)) (or (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|)) (= |ULTIMATE.start_main_~#third_thread_id~0.offset| |fooThread1of1ForFork1_#in~n.offset|)))] [2020-11-09 17:41:09,310 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-11-09 17:41:09,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:41:09,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-11-09 17:41:09,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2020-11-09 17:41:09,312 INFO L87 Difference]: Start difference. First operand 366 states and 906 transitions. Second operand 17 states. [2020-11-09 17:41:10,048 WARN L194 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 31 [2020-11-09 17:41:10,279 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 34 [2020-11-09 17:41:10,528 WARN L194 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 26 [2020-11-09 17:41:10,847 WARN L194 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 33 [2020-11-09 17:41:11,126 WARN L194 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 36 [2020-11-09 17:41:11,574 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-11-09 17:41:12,027 WARN L194 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 37 [2020-11-09 17:41:12,286 WARN L194 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 38 [2020-11-09 17:41:12,454 WARN L194 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 40 [2020-11-09 17:41:13,082 WARN L194 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 49 [2020-11-09 17:41:13,243 WARN L194 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2020-11-09 17:41:13,440 WARN L194 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 44 [2020-11-09 17:41:13,753 WARN L194 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 39 [2020-11-09 17:41:14,003 WARN L194 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 42 [2020-11-09 17:41:14,229 WARN L194 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 41 [2020-11-09 17:41:14,477 WARN L194 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 30 [2020-11-09 17:41:14,745 WARN L194 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 50 [2020-11-09 17:41:15,123 WARN L194 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 53 [2020-11-09 17:41:15,626 WARN L194 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 43 [2020-11-09 17:41:16,223 WARN L194 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 54 [2020-11-09 17:41:16,367 WARN L194 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 39 [2020-11-09 17:41:16,572 WARN L194 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 31 [2020-11-09 17:41:16,776 WARN L194 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2020-11-09 17:41:17,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:41:17,186 INFO L93 Difference]: Finished difference Result 925 states and 2335 transitions. [2020-11-09 17:41:17,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-11-09 17:41:17,189 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 25 [2020-11-09 17:41:17,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:41:17,196 INFO L225 Difference]: With dead ends: 925 [2020-11-09 17:41:17,197 INFO L226 Difference]: Without dead ends: 919 [2020-11-09 17:41:17,200 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 12 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1212 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=828, Invalid=3332, Unknown=0, NotChecked=0, Total=4160 [2020-11-09 17:41:17,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2020-11-09 17:41:17,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 499. [2020-11-09 17:41:17,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 499 states. [2020-11-09 17:41:17,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 1273 transitions. [2020-11-09 17:41:17,248 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 1273 transitions. Word has length 25 [2020-11-09 17:41:17,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:41:17,248 INFO L481 AbstractCegarLoop]: Abstraction has 499 states and 1273 transitions. [2020-11-09 17:41:17,248 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-11-09 17:41:17,249 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 1273 transitions. [2020-11-09 17:41:17,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-09 17:41:17,251 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:41:17,251 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:41:17,252 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 17:41:17,252 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-11-09 17:41:17,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:41:17,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1285072000, now seen corresponding path program 1 times [2020-11-09 17:41:17,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:41:17,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403781843] [2020-11-09 17:41:17,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:41:17,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:41:17,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:41:17,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403781843] [2020-11-09 17:41:17,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:41:17,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-11-09 17:41:17,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1102262134] [2020-11-09 17:41:17,730 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:41:17,735 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:41:17,750 INFO L252 McrAutomatonBuilder]: Finished intersection with 46 states and 65 transitions. [2020-11-09 17:41:17,751 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:41:18,263 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 5 new interpolants: [4036#(and (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (or (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (= fooThread1of1ForFork2_~x~0.base |ULTIMATE.start_main_~#second_thread_id~0.base|)) (or (not (= fooThread1of1ForFork2_~x~0.base |ULTIMATE.start_main_~#second_thread_id~0.base|)) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0))) (or (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|)) (not (= fooThread1of1ForFork2_~x~0.base |ULTIMATE.start_main_~#second_thread_id~0.base|))) (or (= |fooThread1of1ForFork0_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|) (not (= fooThread1of1ForFork2_~x~0.base |ULTIMATE.start_main_~#second_thread_id~0.base|)))), 4037#(and (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (or (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|)) (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork2_#in~n.base|)) (or (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|) (= |fooThread1of1ForFork0_#in~n.base| |fooThread1of1ForFork2_#in~n.base|)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (or (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0)))), 4038#(and (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (or (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|) (= |ULTIMATE.start_main_~#val~0.base| |fooThread1of1ForFork0_#in~n.base|)) (or (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0))) (or (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|)) (= |ULTIMATE.start_main_~#val~0.base| |ULTIMATE.start_main_~#third_thread_id~0.base|))), 4039#(and (or (not (= |ULTIMATE.start_main_#t~mem5| fooThread1of1ForFork0_thidvar0)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| fooThread1of1ForFork1_~x~0.base))) (or (not (= |ULTIMATE.start_main_#t~mem5| fooThread1of1ForFork0_thidvar0)) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0))) (or (not (= |ULTIMATE.start_main_#t~mem5| fooThread1of1ForFork0_thidvar0)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork0_#in~n.base|)))), 4040#(and (or (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork0_#in~n.base|))) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (or (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0))) (or (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| fooThread1of1ForFork1_~x~0.base))))] [2020-11-09 17:41:18,264 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-09 17:41:18,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:41:18,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-09 17:41:18,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2020-11-09 17:41:18,265 INFO L87 Difference]: Start difference. First operand 499 states and 1273 transitions. Second operand 22 states. [2020-11-09 17:41:19,232 WARN L194 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 39 [2020-11-09 17:41:20,028 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2020-11-09 17:41:20,190 WARN L194 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 46 [2020-11-09 17:41:20,470 WARN L194 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 44 [2020-11-09 17:41:20,644 WARN L194 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2020-11-09 17:41:20,849 WARN L194 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2020-11-09 17:41:21,001 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-11-09 17:41:21,205 WARN L194 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 49 [2020-11-09 17:41:21,682 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2020-11-09 17:41:21,829 WARN L194 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2020-11-09 17:41:22,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:41:22,725 INFO L93 Difference]: Finished difference Result 691 states and 1682 transitions. [2020-11-09 17:41:22,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-11-09 17:41:22,725 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 25 [2020-11-09 17:41:22,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:41:22,731 INFO L225 Difference]: With dead ends: 691 [2020-11-09 17:41:22,731 INFO L226 Difference]: Without dead ends: 678 [2020-11-09 17:41:22,733 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 7 SyntacticMatches, 4 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 767 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=657, Invalid=2535, Unknown=0, NotChecked=0, Total=3192 [2020-11-09 17:41:22,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2020-11-09 17:41:22,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 584. [2020-11-09 17:41:22,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2020-11-09 17:41:22,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 1471 transitions. [2020-11-09 17:41:22,756 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 1471 transitions. Word has length 25 [2020-11-09 17:41:22,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:41:22,757 INFO L481 AbstractCegarLoop]: Abstraction has 584 states and 1471 transitions. [2020-11-09 17:41:22,757 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-11-09 17:41:22,757 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 1471 transitions. [2020-11-09 17:41:22,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-09 17:41:22,759 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:41:22,759 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:41:22,760 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 17:41:22,760 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-11-09 17:41:22,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:41:22,761 INFO L82 PathProgramCache]: Analyzing trace with hash -421440302, now seen corresponding path program 2 times [2020-11-09 17:41:22,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:41:22,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665852985] [2020-11-09 17:41:22,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:41:22,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:41:23,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:41:23,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665852985] [2020-11-09 17:41:23,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:41:23,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-11-09 17:41:23,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [326228763] [2020-11-09 17:41:23,231 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:41:23,235 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:41:23,245 INFO L252 McrAutomatonBuilder]: Finished intersection with 46 states and 65 transitions. [2020-11-09 17:41:23,245 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:41:23,669 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 6 new interpolants: [5987#(or (not (= |ULTIMATE.start_main_#t~mem5| fooThread1of1ForFork0_thidvar0)) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0))), 5988#(and (or (not (= |ULTIMATE.start_main_#t~mem5| fooThread1of1ForFork0_thidvar0)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| fooThread1of1ForFork1_~x~0.base))) (or (not (= |ULTIMATE.start_main_#t~mem5| fooThread1of1ForFork0_thidvar0)) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0))) (or (not (= |ULTIMATE.start_main_#t~mem5| fooThread1of1ForFork0_thidvar0)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork0_#in~n.base|)))), 5989#(and (or (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork0_#in~n.base|))) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (or (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0))) (or (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| fooThread1of1ForFork1_~x~0.base)))), 5990#(and (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (or (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (= fooThread1of1ForFork2_~x~0.base |ULTIMATE.start_main_~#second_thread_id~0.base|)) (or (not (= fooThread1of1ForFork2_~x~0.base |ULTIMATE.start_main_~#second_thread_id~0.base|)) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0))) (or (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|)) (not (= fooThread1of1ForFork2_~x~0.base |ULTIMATE.start_main_~#second_thread_id~0.base|))) (or (= |fooThread1of1ForFork0_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|) (not (= fooThread1of1ForFork2_~x~0.base |ULTIMATE.start_main_~#second_thread_id~0.base|)))), 5991#(and (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (or (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|)) (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork2_#in~n.base|)) (or (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|) (= |fooThread1of1ForFork0_#in~n.base| |fooThread1of1ForFork2_#in~n.base|)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (or (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0)))), 5992#(and (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (or (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|) (= |ULTIMATE.start_main_~#val~0.base| |fooThread1of1ForFork0_#in~n.base|)) (or (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0))) (or (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|)) (= |ULTIMATE.start_main_~#val~0.base| |ULTIMATE.start_main_~#third_thread_id~0.base|)))] [2020-11-09 17:41:23,669 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-11-09 17:41:23,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:41:23,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-11-09 17:41:23,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2020-11-09 17:41:23,671 INFO L87 Difference]: Start difference. First operand 584 states and 1471 transitions. Second operand 23 states. [2020-11-09 17:41:24,554 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 39 [2020-11-09 17:41:25,236 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2020-11-09 17:41:25,387 WARN L194 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 46 [2020-11-09 17:41:25,657 WARN L194 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 44 [2020-11-09 17:41:25,808 WARN L194 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2020-11-09 17:41:25,998 WARN L194 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2020-11-09 17:41:26,333 WARN L194 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 49 [2020-11-09 17:41:26,757 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2020-11-09 17:41:27,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:41:27,449 INFO L93 Difference]: Finished difference Result 683 states and 1668 transitions. [2020-11-09 17:41:27,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-11-09 17:41:27,450 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 25 [2020-11-09 17:41:27,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:41:27,455 INFO L225 Difference]: With dead ends: 683 [2020-11-09 17:41:27,455 INFO L226 Difference]: Without dead ends: 666 [2020-11-09 17:41:27,457 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 7 SyntacticMatches, 4 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 680 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=621, Invalid=2459, Unknown=0, NotChecked=0, Total=3080 [2020-11-09 17:41:27,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2020-11-09 17:41:27,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 579. [2020-11-09 17:41:27,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 579 states. [2020-11-09 17:41:27,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 1457 transitions. [2020-11-09 17:41:27,476 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 1457 transitions. Word has length 25 [2020-11-09 17:41:27,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:41:27,477 INFO L481 AbstractCegarLoop]: Abstraction has 579 states and 1457 transitions. [2020-11-09 17:41:27,477 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-11-09 17:41:27,477 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 1457 transitions. [2020-11-09 17:41:27,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-09 17:41:27,479 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:41:27,479 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:41:27,479 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 17:41:27,479 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-11-09 17:41:27,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:41:27,480 INFO L82 PathProgramCache]: Analyzing trace with hash -1646732586, now seen corresponding path program 3 times [2020-11-09 17:41:27,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:41:27,488 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359407638] [2020-11-09 17:41:27,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:41:27,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:41:27,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:41:27,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359407638] [2020-11-09 17:41:27,972 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:41:27,972 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-11-09 17:41:27,972 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1931570947] [2020-11-09 17:41:27,972 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:41:27,976 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:41:27,993 INFO L252 McrAutomatonBuilder]: Finished intersection with 45 states and 63 transitions. [2020-11-09 17:41:27,993 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:41:28,172 WARN L194 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2020-11-09 17:41:28,415 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 38 [2020-11-09 17:41:28,736 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [7917#(and (or (not (= |ULTIMATE.start_main_~#second_thread_id~0.base| fooThread1of1ForFork1_~x~0.base)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork0_#in~n.base|))) (or (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| fooThread1of1ForFork1_~x~0.base)) (not (= |fooThread1of1ForFork0_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|))) (or (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork0_#in~n.base|))) (or (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0))) (or (not (= |ULTIMATE.start_main_~#second_thread_id~0.base| fooThread1of1ForFork1_~x~0.base)) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0))) (or (not (= |ULTIMATE.start_main_~#second_thread_id~0.base| fooThread1of1ForFork1_~x~0.base)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| fooThread1of1ForFork1_~x~0.base))) (or (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0)) (not (= |fooThread1of1ForFork0_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|))) (or (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| fooThread1of1ForFork1_~x~0.base))) (or (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork0_#in~n.base|))) (or (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0)))), 7918#(and (or (not (= |fooThread1of1ForFork1_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork0_#in~n.base|))) (or (not (= fooThread1of1ForFork2_~x~0.base |ULTIMATE.start_main_~#third_thread_id~0.base|)) (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork0_#in~n.base|)) (or (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork0_#in~n.base|))) (or (not (= fooThread1of1ForFork2_~x~0.base |ULTIMATE.start_main_~#second_thread_id~0.base|)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork0_#in~n.base|))) (or (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|)) (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork0_#in~n.base|)) (or (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0)) (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork0_#in~n.base|)) (or (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork0_#in~n.base|)))), 7919#(and (or (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork2_#in~n.base|)) (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork0_#in~n.base|)) (or (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork0_#in~n.base|)) (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork2_#in~n.base|)) (or (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork2_#in~n.base|)) (not (= |fooThread1of1ForFork1_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|))) (or (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0)) (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork2_#in~n.base|)) (or (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork0_#in~n.base|))) (or (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|)) (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork0_#in~n.base|)) (or (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork0_#in~n.base|)))), 7920#(and (or (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (not (= |ULTIMATE.start_main_~#val~0.base| |ULTIMATE.start_main_~#third_thread_id~0.base|))) (= |ULTIMATE.start_main_~#val~0.base| |fooThread1of1ForFork0_#in~n.base|) (or (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|)) (= |ULTIMATE.start_main_~#val~0.base| |ULTIMATE.start_main_~#third_thread_id~0.base|)) (or (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork0_#in~n.base|))) (or (not (= |ULTIMATE.start_main_~#val~0.base| |ULTIMATE.start_main_~#third_thread_id~0.base|)) (not (= |fooThread1of1ForFork1_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|))) (or (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0)) (= |ULTIMATE.start_main_~#val~0.base| |ULTIMATE.start_main_~#third_thread_id~0.base|)))] [2020-11-09 17:41:28,737 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-11-09 17:41:28,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:41:28,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-11-09 17:41:28,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2020-11-09 17:41:28,738 INFO L87 Difference]: Start difference. First operand 579 states and 1457 transitions. Second operand 21 states. [2020-11-09 17:41:29,354 WARN L194 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2020-11-09 17:41:29,543 WARN L194 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2020-11-09 17:41:29,763 WARN L194 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 49 [2020-11-09 17:41:29,964 WARN L194 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 51 [2020-11-09 17:41:30,172 WARN L194 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2020-11-09 17:41:30,462 WARN L194 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 56 [2020-11-09 17:41:30,712 WARN L194 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2020-11-09 17:41:31,064 WARN L194 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 65 [2020-11-09 17:41:31,585 WARN L194 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 53 [2020-11-09 17:41:31,800 WARN L194 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 55 [2020-11-09 17:41:31,979 WARN L194 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2020-11-09 17:41:32,236 WARN L194 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 61 [2020-11-09 17:41:32,504 WARN L194 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 61 [2020-11-09 17:41:32,919 WARN L194 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 69 [2020-11-09 17:41:33,343 WARN L194 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 48 [2020-11-09 17:41:33,539 WARN L194 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 50 [2020-11-09 17:41:33,831 WARN L194 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 56 [2020-11-09 17:41:34,157 WARN L194 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 51 [2020-11-09 17:41:34,466 WARN L194 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 59 [2020-11-09 17:41:34,811 WARN L194 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 60 [2020-11-09 17:41:34,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:41:34,903 INFO L93 Difference]: Finished difference Result 958 states and 2185 transitions. [2020-11-09 17:41:34,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-11-09 17:41:34,903 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 25 [2020-11-09 17:41:34,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:41:34,910 INFO L225 Difference]: With dead ends: 958 [2020-11-09 17:41:34,910 INFO L226 Difference]: Without dead ends: 946 [2020-11-09 17:41:34,911 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 6 SyntacticMatches, 5 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 467 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=654, Invalid=1896, Unknown=0, NotChecked=0, Total=2550 [2020-11-09 17:41:34,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2020-11-09 17:41:34,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 611. [2020-11-09 17:41:34,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2020-11-09 17:41:34,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 1521 transitions. [2020-11-09 17:41:34,937 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 1521 transitions. Word has length 25 [2020-11-09 17:41:34,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:41:34,938 INFO L481 AbstractCegarLoop]: Abstraction has 611 states and 1521 transitions. [2020-11-09 17:41:34,938 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-11-09 17:41:34,938 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 1521 transitions. [2020-11-09 17:41:34,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-09 17:41:34,940 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:41:34,940 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:41:34,940 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 17:41:34,940 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-11-09 17:41:34,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:41:34,940 INFO L82 PathProgramCache]: Analyzing trace with hash 395693190, now seen corresponding path program 4 times [2020-11-09 17:41:34,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:41:34,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623937868] [2020-11-09 17:41:34,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:41:34,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:41:35,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:41:35,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623937868] [2020-11-09 17:41:35,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:41:35,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-11-09 17:41:35,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [514013808] [2020-11-09 17:41:35,369 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:41:35,372 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:41:35,387 INFO L252 McrAutomatonBuilder]: Finished intersection with 45 states and 63 transitions. [2020-11-09 17:41:35,387 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:41:35,886 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [10178#(and (= fooThread1of1ForFork2_~x~0.base |fooThread1of1ForFork0_#in~n.base|) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (or (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (= fooThread1of1ForFork2_~x~0.base |ULTIMATE.start_main_~#second_thread_id~0.base|)) (or (not (= fooThread1of1ForFork2_~x~0.base |ULTIMATE.start_main_~#second_thread_id~0.base|)) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0))) (or (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|)) (not (= fooThread1of1ForFork2_~x~0.base |ULTIMATE.start_main_~#second_thread_id~0.base|)))), 10179#(and (or (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| fooThread1of1ForFork1_~x~0.base)) (not (= |fooThread1of1ForFork0_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|))) (or (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork0_#in~n.base|))) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (or (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0))) (or (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0)) (not (= |fooThread1of1ForFork0_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|))) (or (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| fooThread1of1ForFork1_~x~0.base)))), 10180#(and (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (or (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|)) (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork2_#in~n.base|)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (or (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0))) (= |fooThread1of1ForFork0_#in~n.base| |fooThread1of1ForFork2_#in~n.base|)), 10181#(and (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (= |ULTIMATE.start_main_~#val~0.base| |fooThread1of1ForFork0_#in~n.base|) (or (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0))) (or (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|)) (= |ULTIMATE.start_main_~#val~0.base| |ULTIMATE.start_main_~#third_thread_id~0.base|)))] [2020-11-09 17:41:35,887 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-11-09 17:41:35,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:41:35,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-11-09 17:41:35,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2020-11-09 17:41:35,888 INFO L87 Difference]: Start difference. First operand 611 states and 1521 transitions. Second operand 21 states. [2020-11-09 17:41:37,125 WARN L194 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 40 [2020-11-09 17:41:37,600 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-11-09 17:41:38,612 WARN L194 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2020-11-09 17:41:38,765 WARN L194 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2020-11-09 17:41:38,913 WARN L194 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 40 [2020-11-09 17:41:39,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:41:39,753 INFO L93 Difference]: Finished difference Result 873 states and 2084 transitions. [2020-11-09 17:41:39,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-11-09 17:41:39,753 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 25 [2020-11-09 17:41:39,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:41:39,759 INFO L225 Difference]: With dead ends: 873 [2020-11-09 17:41:39,759 INFO L226 Difference]: Without dead ends: 869 [2020-11-09 17:41:39,760 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 4 SyntacticMatches, 7 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 811 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=690, Invalid=2616, Unknown=0, NotChecked=0, Total=3306 [2020-11-09 17:41:39,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2020-11-09 17:41:39,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 611. [2020-11-09 17:41:39,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2020-11-09 17:41:39,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 1520 transitions. [2020-11-09 17:41:39,785 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 1520 transitions. Word has length 25 [2020-11-09 17:41:39,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:41:39,786 INFO L481 AbstractCegarLoop]: Abstraction has 611 states and 1520 transitions. [2020-11-09 17:41:39,786 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-11-09 17:41:39,786 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 1520 transitions. [2020-11-09 17:41:39,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-09 17:41:39,788 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:41:39,788 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:41:39,788 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 17:41:39,788 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-11-09 17:41:39,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:41:39,789 INFO L82 PathProgramCache]: Analyzing trace with hash 1259324888, now seen corresponding path program 5 times [2020-11-09 17:41:39,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:41:39,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896822338] [2020-11-09 17:41:39,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:41:39,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:41:40,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:41:40,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896822338] [2020-11-09 17:41:40,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:41:40,219 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-11-09 17:41:40,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1882121402] [2020-11-09 17:41:40,220 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:41:40,224 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:41:40,233 INFO L252 McrAutomatonBuilder]: Finished intersection with 45 states and 63 transitions. [2020-11-09 17:41:40,233 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:41:40,785 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 5 new interpolants: [12368#(and (= fooThread1of1ForFork2_~x~0.base |fooThread1of1ForFork0_#in~n.base|) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (or (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (= fooThread1of1ForFork2_~x~0.base |ULTIMATE.start_main_~#second_thread_id~0.base|)) (or (not (= fooThread1of1ForFork2_~x~0.base |ULTIMATE.start_main_~#second_thread_id~0.base|)) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0))) (or (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|)) (not (= fooThread1of1ForFork2_~x~0.base |ULTIMATE.start_main_~#second_thread_id~0.base|)))), 12369#(and (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (or (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|)) (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork2_#in~n.base|)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (or (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0))) (= |fooThread1of1ForFork0_#in~n.base| |fooThread1of1ForFork2_#in~n.base|)), 12370#(and (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (= |ULTIMATE.start_main_~#val~0.base| |fooThread1of1ForFork0_#in~n.base|) (or (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0))) (or (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|)) (= |ULTIMATE.start_main_~#val~0.base| |ULTIMATE.start_main_~#third_thread_id~0.base|))), 12371#(or (not (= |ULTIMATE.start_main_#t~mem5| fooThread1of1ForFork0_thidvar0)) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0))), 12372#(and (or (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| fooThread1of1ForFork1_~x~0.base)) (not (= |fooThread1of1ForFork0_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|))) (or (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork0_#in~n.base|))) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (or (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0))) (or (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0)) (not (= |fooThread1of1ForFork0_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|))) (or (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| fooThread1of1ForFork1_~x~0.base))))] [2020-11-09 17:41:40,785 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-09 17:41:40,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:41:40,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-09 17:41:40,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2020-11-09 17:41:40,786 INFO L87 Difference]: Start difference. First operand 611 states and 1520 transitions. Second operand 22 states. [2020-11-09 17:41:42,018 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 40 [2020-11-09 17:41:42,503 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-11-09 17:41:43,529 WARN L194 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2020-11-09 17:41:43,685 WARN L194 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2020-11-09 17:41:43,831 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 40 [2020-11-09 17:41:44,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:41:44,576 INFO L93 Difference]: Finished difference Result 871 states and 2081 transitions. [2020-11-09 17:41:44,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-11-09 17:41:44,577 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 25 [2020-11-09 17:41:44,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:41:44,583 INFO L225 Difference]: With dead ends: 871 [2020-11-09 17:41:44,583 INFO L226 Difference]: Without dead ends: 852 [2020-11-09 17:41:44,584 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 4 SyntacticMatches, 7 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 761 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=658, Invalid=2534, Unknown=0, NotChecked=0, Total=3192 [2020-11-09 17:41:44,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2020-11-09 17:41:44,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 599. [2020-11-09 17:41:44,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 599 states. [2020-11-09 17:41:44,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 1491 transitions. [2020-11-09 17:41:44,605 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 1491 transitions. Word has length 25 [2020-11-09 17:41:44,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:41:44,606 INFO L481 AbstractCegarLoop]: Abstraction has 599 states and 1491 transitions. [2020-11-09 17:41:44,606 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-11-09 17:41:44,606 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 1491 transitions. [2020-11-09 17:41:44,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-09 17:41:44,608 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:41:44,608 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:41:44,608 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 17:41:44,608 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-11-09 17:41:44,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:41:44,609 INFO L82 PathProgramCache]: Analyzing trace with hash 1982583190, now seen corresponding path program 1 times [2020-11-09 17:41:44,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:41:44,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738585610] [2020-11-09 17:41:44,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:41:44,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:41:45,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:41:45,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738585610] [2020-11-09 17:41:45,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:41:45,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-11-09 17:41:45,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [937502551] [2020-11-09 17:41:45,266 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:41:45,269 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:41:45,274 INFO L252 McrAutomatonBuilder]: Finished intersection with 35 states and 43 transitions. [2020-11-09 17:41:45,275 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:41:45,556 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [14528#(and (or (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (= |fooThread1of1ForFork1_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (or (not (= |fooThread1of1ForFork1_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (= |fooThread1of1ForFork1_#in~n.offset| |ULTIMATE.start_main_~#second_thread_id~0.offset|)) (not (= (+ ~counter~0 1) 0)) (or (= |fooThread1of1ForFork1_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|) (= |fooThread1of1ForFork0_#in~n.base| |fooThread1of1ForFork1_#in~n.base|)) (or (= |fooThread1of1ForFork1_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|) (not (= fooThread1of1ForFork2_~x~0.base |ULTIMATE.start_main_~#second_thread_id~0.base|))) (or (not (= |fooThread1of1ForFork1_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (= fooThread1of1ForFork0_thidvar0 0))), 14529#(and (or (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (= |fooThread1of1ForFork1_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (or (= |fooThread1of1ForFork1_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|) (= |fooThread1of1ForFork1_#in~n.base| |fooThread1of1ForFork2_#in~n.base|)) (or (not (= |fooThread1of1ForFork1_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (= |fooThread1of1ForFork1_#in~n.offset| |ULTIMATE.start_main_~#second_thread_id~0.offset|)) (not (= (+ ~counter~0 1) 0)) (or (= |fooThread1of1ForFork1_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|) (= |fooThread1of1ForFork0_#in~n.base| |fooThread1of1ForFork1_#in~n.base|)) (or (not (= |fooThread1of1ForFork1_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (= fooThread1of1ForFork0_thidvar0 0))), 14530#(and (or (= |fooThread1of1ForFork1_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|) (= |ULTIMATE.start_main_~#val~0.base| |fooThread1of1ForFork1_#in~n.base|)) (or (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (= |fooThread1of1ForFork1_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (or (not (= |fooThread1of1ForFork1_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (= |fooThread1of1ForFork1_#in~n.offset| |ULTIMATE.start_main_~#second_thread_id~0.offset|)) (not (= (+ ~counter~0 1) 0)) (or (= |fooThread1of1ForFork1_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|) (= |fooThread1of1ForFork0_#in~n.base| |fooThread1of1ForFork1_#in~n.base|)) (or (not (= |fooThread1of1ForFork1_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (= fooThread1of1ForFork0_thidvar0 0))), 14527#(and (or (not (= |ULTIMATE.start_main_~#second_thread_id~0.base| fooThread1of1ForFork1_~x~0.base)) (= fooThread1of1ForFork0_thidvar0 0)) (not (= |fooThread1of1ForFork1_#t~pre0| 0)) (or (not (= |ULTIMATE.start_main_~#second_thread_id~0.base| fooThread1of1ForFork1_~x~0.base)) (= |ULTIMATE.start_main_~#second_thread_id~0.offset| fooThread1of1ForFork1_~x~0.offset)) (or (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (= |ULTIMATE.start_main_~#second_thread_id~0.base| fooThread1of1ForFork1_~x~0.base)) (or (= |ULTIMATE.start_main_~#second_thread_id~0.base| fooThread1of1ForFork1_~x~0.base) (not (= |fooThread1of1ForFork0_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|))))] [2020-11-09 17:41:45,556 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-11-09 17:41:45,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:41:45,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-11-09 17:41:45,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2020-11-09 17:41:45,558 INFO L87 Difference]: Start difference. First operand 599 states and 1491 transitions. Second operand 19 states. [2020-11-09 17:41:45,978 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 46 [2020-11-09 17:41:46,402 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 40 [2020-11-09 17:41:46,558 WARN L194 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-11-09 17:41:46,834 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 43 [2020-11-09 17:41:47,008 WARN L194 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 44 [2020-11-09 17:41:47,163 WARN L194 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-11-09 17:41:47,309 WARN L194 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 44 [2020-11-09 17:41:48,074 WARN L194 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2020-11-09 17:41:48,249 WARN L194 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 48 [2020-11-09 17:41:48,437 WARN L194 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2020-11-09 17:41:48,662 WARN L194 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2020-11-09 17:41:48,901 WARN L194 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-11-09 17:41:49,128 WARN L194 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2020-11-09 17:41:49,438 WARN L194 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2020-11-09 17:41:49,901 WARN L194 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2020-11-09 17:41:50,195 WARN L194 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2020-11-09 17:41:50,730 WARN L194 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2020-11-09 17:41:51,342 WARN L194 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2020-11-09 17:41:52,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:41:52,206 INFO L93 Difference]: Finished difference Result 1049 states and 2583 transitions. [2020-11-09 17:41:52,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-11-09 17:41:52,207 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 25 [2020-11-09 17:41:52,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:41:52,213 INFO L225 Difference]: With dead ends: 1049 [2020-11-09 17:41:52,213 INFO L226 Difference]: Without dead ends: 1043 [2020-11-09 17:41:52,215 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1168 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=853, Invalid=3307, Unknown=0, NotChecked=0, Total=4160 [2020-11-09 17:41:52,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2020-11-09 17:41:52,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 774. [2020-11-09 17:41:52,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 774 states. [2020-11-09 17:41:52,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 774 states to 774 states and 1951 transitions. [2020-11-09 17:41:52,246 INFO L78 Accepts]: Start accepts. Automaton has 774 states and 1951 transitions. Word has length 25 [2020-11-09 17:41:52,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:41:52,246 INFO L481 AbstractCegarLoop]: Abstraction has 774 states and 1951 transitions. [2020-11-09 17:41:52,247 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-11-09 17:41:52,247 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states and 1951 transitions. [2020-11-09 17:41:52,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-09 17:41:52,249 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:41:52,249 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:41:52,249 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-09 17:41:52,250 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-11-09 17:41:52,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:41:52,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1689584038, now seen corresponding path program 1 times [2020-11-09 17:41:52,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:41:52,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062869510] [2020-11-09 17:41:52,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:41:52,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-09 17:41:52,287 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-09 17:41:52,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-09 17:41:52,313 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-09 17:41:52,355 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-09 17:41:52,355 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-09 17:41:52,355 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-09 17:41:52,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:41:52 BasicIcfg [2020-11-09 17:41:52,420 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 17:41:52,422 INFO L168 Benchmark]: Toolchain (without parser) took 50118.32 ms. Allocated memory was 167.8 MB in the beginning and 261.1 MB in the end (delta: 93.3 MB). Free memory was 147.5 MB in the beginning and 121.8 MB in the end (delta: 25.7 MB). Peak memory consumption was 118.1 MB. Max. memory is 8.0 GB. [2020-11-09 17:41:52,422 INFO L168 Benchmark]: CDTParser took 0.70 ms. Allocated memory is still 167.8 MB. Free memory is still 139.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 17:41:52,423 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.70 ms. Allocated memory is still 167.8 MB. Free memory was 146.9 MB in the beginning and 138.1 MB in the end (delta: 8.8 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-11-09 17:41:52,423 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.43 ms. Allocated memory is still 167.8 MB. Free memory was 138.1 MB in the beginning and 149.6 MB in the end (delta: -11.6 MB). Peak memory consumption was 1.4 MB. Max. memory is 8.0 GB. [2020-11-09 17:41:52,424 INFO L168 Benchmark]: Boogie Preprocessor took 45.17 ms. Allocated memory is still 167.8 MB. Free memory was 149.6 MB in the beginning and 148.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 17:41:52,425 INFO L168 Benchmark]: RCFGBuilder took 455.98 ms. Allocated memory is still 167.8 MB. Free memory was 148.4 MB in the beginning and 133.3 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2020-11-09 17:41:52,426 INFO L168 Benchmark]: TraceAbstraction took 49222.81 ms. Allocated memory was 167.8 MB in the beginning and 261.1 MB in the end (delta: 93.3 MB). Free memory was 132.7 MB in the beginning and 121.8 MB in the end (delta: 10.9 MB). Peak memory consumption was 105.3 MB. Max. memory is 8.0 GB. [2020-11-09 17:41:52,429 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70 ms. Allocated memory is still 167.8 MB. Free memory is still 139.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 291.70 ms. Allocated memory is still 167.8 MB. Free memory was 146.9 MB in the beginning and 138.1 MB in the end (delta: 8.8 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 89.43 ms. Allocated memory is still 167.8 MB. Free memory was 138.1 MB in the beginning and 149.6 MB in the end (delta: -11.6 MB). Peak memory consumption was 1.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 45.17 ms. Allocated memory is still 167.8 MB. Free memory was 149.6 MB in the beginning and 148.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 8.0 GB. * RCFGBuilder took 455.98 ms. Allocated memory is still 167.8 MB. Free memory was 148.4 MB in the beginning and 133.3 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 49222.81 ms. Allocated memory was 167.8 MB in the beginning and 261.1 MB in the end (delta: 93.3 MB). Free memory was 132.7 MB in the beginning and 121.8 MB in the end (delta: 10.9 MB). Peak memory consumption was 105.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 512 VarBasedMoverChecksPositive, 32 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 104 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.2s, 81 PlacesBefore, 39 PlacesAfterwards, 77 TransitionsBefore, 35 TransitionsAfterwards, 1008 CoEnabledTransitionPairs, 5 FixpointIterations, 25 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 43 TotalNumberOfCompositions, 4010 MoverChecksTotal - CounterExampleResult [Line: 37]: assertion can be violated assertion can be violated We found a FailurePath: [L13] 0 int counter = 0; [L23] 0 int val = 0; [L25] 0 pthread_t first_thread_id; [L26] 0 pthread_t second_thread_id; [L27] 0 pthread_t third_thread_id; [L29] FCALL, FORK 0 pthread_create(&first_thread_id, NULL, foo, &val) VAL [counter=0, n={7:0}] [L30] FCALL, FORK 0 pthread_create(&second_thread_id, NULL, foo, &val) VAL [counter=0, n={7:0}] [L16] 2 int *x = (int *)n; [L17] 2 ++counter VAL [++counter=1, counter=0, n={7:0}, n={7:0}, x={7:0}] [L31] FCALL, FORK 0 pthread_create(&third_thread_id, NULL, foo, &val) VAL [++counter=1, counter=0, n={7:0}, n={7:0}, x={7:0}] [L16] 3 int *x = (int *)n; [L17] EXPR 3 ++counter VAL [++counter=1, counter=1, n={7:0}, n={7:0}, x={7:0}] [L17] 3 *x = ++counter [L18] 3 return 0; [L17] 2 ++counter VAL [++counter=1, \result={0:0}, counter=2, n={7:0}, n={7:0}, x={7:0}] [L16] 1 int *x = (int *)n; [L17] EXPR 1 ++counter VAL [++counter=3, \result={0:0}, counter=3, n={7:0}, n={7:0}, x={7:0}] [L33] 0 \read(first_thread_id) VAL [++counter=3, \result={0:0}, counter=3, n={7:0}, n={7:0}, x={7:0}] [L17] 1 *x = ++counter [L18] 1 return 0; [L17] 2 *x = ++counter [L18] 2 return 0; [L33] FCALL, JOIN 1 pthread_join(first_thread_id, NULL) VAL [\result={0:0}, counter=3, n={7:0}, n={7:0}, x={7:0}] [L34] 0 \read(second_thread_id) VAL [\result={0:0}, counter=3, n={7:0}, n={7:0}, x={7:0}] [L34] FCALL, JOIN 2 pthread_join(second_thread_id, NULL) VAL [\result={0:0}, counter=3, n={7:0}, n={7:0}, x={7:0}] [L35] 0 \read(third_thread_id) VAL [\result={0:0}, counter=3, n={7:0}, n={7:0}, x={7:0}] [L35] FCALL, JOIN 3 pthread_join(third_thread_id, NULL) VAL [\result={0:0}, counter=3, n={7:0}, n={7:0}, x={7:0}] [L37] FCALL 0 IdentifierExpression[val] [L37] 0 CodeAnnotStmt[Assertion] VAL [\result={0:0}, counter=3, n={7:0}, n={7:0}, x={7:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 48.9s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 37.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.2s, HoareTripleCheckerStatistics: 402 SDtfs, 2581 SDslu, 2953 SDs, 0 SdLazy, 7331 SolverSat, 495 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 495 GetRequests, 53 SyntacticMatches, 40 SemanticMatches, 402 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5871 ImplicationChecksByTransitivity, 34.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=774occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 1743 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 225 NumberOfCodeBlocks, 225 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 100608 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...