/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 01:19:35,243 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 01:19:35,245 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 01:19:35,278 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 01:19:35,336 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 01:19:35,337 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 01:19:35,337 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 01:19:35,341 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-06-05 01:19:35,382 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 01:19:35,382 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 01:19:35,382 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 01:19:35,382 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 01:19:35,385 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 01:19:35,385 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 01:19:35,385 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 01:19:35,385 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 01:19:35,385 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 01:19:35,386 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 01:19:35,386 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 01:19:35,386 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 01:19:35,386 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 01:19:35,387 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 01:19:35,387 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 01:19:35,387 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 01:19:35,387 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 01:19:35,387 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 01:19:35,387 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 01:19:35,387 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 01:19:35,387 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 01:19:35,388 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 01:19:35,388 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 01:19:35,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 01:19:35,388 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 01:19:35,388 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 01:19:35,388 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 01:19:35,388 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 01:19:35,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 01:19:35,389 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 01:19:35,389 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 01:19:35,389 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 01:19:35,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 01:19:35,699 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 01:19:35,701 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 01:19:35,702 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 01:19:35,703 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 01:19:35,704 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-1.i [2021-06-05 01:19:35,758 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc873731f/a57a5d042477474c9d39731ebd2badd6/FLAG02e9fd9da [2021-06-05 01:19:36,293 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 01:19:36,294 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-1.i [2021-06-05 01:19:36,315 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc873731f/a57a5d042477474c9d39731ebd2badd6/FLAG02e9fd9da [2021-06-05 01:19:36,607 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc873731f/a57a5d042477474c9d39731ebd2badd6 [2021-06-05 01:19:36,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 01:19:36,611 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 01:19:36,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 01:19:36,612 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 01:19:36,631 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 01:19:36,632 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 01:19:36" (1/1) ... [2021-06-05 01:19:36,633 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28e2fd67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 01:19:36, skipping insertion in model container [2021-06-05 01:19:36,633 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 01:19:36" (1/1) ... [2021-06-05 01:19:36,638 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 01:19:36,685 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 01:19:36,927 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-1.i[30035,30048] [2021-06-05 01:19:36,936 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 01:19:36,942 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 01:19:36,968 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-1.i[30035,30048] [2021-06-05 01:19:36,972 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 01:19:37,024 INFO L208 MainTranslator]: Completed translation [2021-06-05 01:19:37,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 01:19:37 WrapperNode [2021-06-05 01:19:37,025 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 01:19:37,026 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 01:19:37,026 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 01:19:37,026 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 01:19:37,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 01:19:37" (1/1) ... [2021-06-05 01:19:37,042 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 01:19:37" (1/1) ... [2021-06-05 01:19:37,058 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 01:19:37,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 01:19:37,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 01:19:37,059 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 01:19:37,065 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 01:19:37" (1/1) ... [2021-06-05 01:19:37,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 01:19:37" (1/1) ... [2021-06-05 01:19:37,067 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 01:19:37" (1/1) ... [2021-06-05 01:19:37,067 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 01:19:37" (1/1) ... [2021-06-05 01:19:37,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 01:19:37" (1/1) ... [2021-06-05 01:19:37,074 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 01:19:37" (1/1) ... [2021-06-05 01:19:37,076 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 01:19:37" (1/1) ... [2021-06-05 01:19:37,078 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 01:19:37,078 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 01:19:37,079 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 01:19:37,079 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 01:19:37,079 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 01:19:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 01:19:37,143 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-06-05 01:19:37,143 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-06-05 01:19:37,143 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-06-05 01:19:37,144 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-06-05 01:19:37,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 01:19:37,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 01:19:37,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 01:19:37,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 01:19:37,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 01:19:37,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 01:19:37,148 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 01:19:37,558 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 01:19:37,559 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-06-05 01:19:37,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 01:19:37 BoogieIcfgContainer [2021-06-05 01:19:37,560 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 01:19:37,562 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 01:19:37,562 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 01:19:37,564 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 01:19:37,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 01:19:36" (1/3) ... [2021-06-05 01:19:37,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ab7837b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 01:19:37, skipping insertion in model container [2021-06-05 01:19:37,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 01:19:37" (2/3) ... [2021-06-05 01:19:37,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ab7837b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 01:19:37, skipping insertion in model container [2021-06-05 01:19:37,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 01:19:37" (3/3) ... [2021-06-05 01:19:37,568 INFO L111 eAbstractionObserver]: Analyzing ICFG nondet-loop-bound-1.i [2021-06-05 01:19:37,573 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 01:19:37,573 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 01:19:37,573 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 01:19:37,574 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 01:19:37,608 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,608 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,609 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,609 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,609 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,609 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,609 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,609 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,610 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,610 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,610 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,610 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,610 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,611 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,611 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,611 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,612 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,612 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,612 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,612 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,612 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,612 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,613 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,613 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,613 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,614 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,614 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,614 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,614 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,615 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,615 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,615 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,615 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,615 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,617 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,618 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,618 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,618 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,618 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,623 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,623 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,623 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,624 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,624 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,624 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:37,627 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 01:19:37,645 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-05 01:19:37,676 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 01:19:37,676 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 01:19:37,676 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 01:19:37,676 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 01:19:37,676 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 01:19:37,677 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 01:19:37,677 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 01:19:37,677 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 01:19:37,688 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 72 places, 69 transitions, 148 flow [2021-06-05 01:19:37,764 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1329 states, 1323 states have (on average 2.7135298563869994) internal successors, (3590), 1328 states have internal predecessors, (3590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:19:37,769 INFO L276 IsEmpty]: Start isEmpty. Operand has 1329 states, 1323 states have (on average 2.7135298563869994) internal successors, (3590), 1328 states have internal predecessors, (3590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:19:37,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-06-05 01:19:37,783 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 01:19:37,784 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 01:19:37,784 INFO L430 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-05 01:19:37,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 01:19:37,790 INFO L82 PathProgramCache]: Analyzing trace with hash 2101000019, now seen corresponding path program 1 times [2021-06-05 01:19:37,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 01:19:37,798 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246378117] [2021-06-05 01:19:37,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 01:19:37,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:19:38,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 01:19:38,149 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 01:19:38,149 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246378117] [2021-06-05 01:19:38,150 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246378117] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 01:19:38,150 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 01:19:38,150 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 01:19:38,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999759389] [2021-06-05 01:19:38,154 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 01:19:38,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 01:19:38,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 01:19:38,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-05 01:19:38,170 INFO L87 Difference]: Start difference. First operand has 1329 states, 1323 states have (on average 2.7135298563869994) internal successors, (3590), 1328 states have internal predecessors, (3590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:19:38,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 01:19:38,396 INFO L93 Difference]: Finished difference Result 1205 states and 2955 transitions. [2021-06-05 01:19:38,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 01:19:38,403 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-06-05 01:19:38,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 01:19:38,420 INFO L225 Difference]: With dead ends: 1205 [2021-06-05 01:19:38,420 INFO L226 Difference]: Without dead ends: 876 [2021-06-05 01:19:38,422 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 138.9ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-06-05 01:19:38,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2021-06-05 01:19:38,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 832. [2021-06-05 01:19:38,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 829 states have (on average 2.4390832328106153) internal successors, (2022), 831 states have internal predecessors, (2022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:19:38,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 2022 transitions. [2021-06-05 01:19:38,509 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 2022 transitions. Word has length 34 [2021-06-05 01:19:38,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 01:19:38,509 INFO L482 AbstractCegarLoop]: Abstraction has 832 states and 2022 transitions. [2021-06-05 01:19:38,510 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:19:38,510 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 2022 transitions. [2021-06-05 01:19:38,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 01:19:38,513 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 01:19:38,513 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 01:19:38,513 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 01:19:38,514 INFO L430 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-05 01:19:38,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 01:19:38,514 INFO L82 PathProgramCache]: Analyzing trace with hash 317679082, now seen corresponding path program 1 times [2021-06-05 01:19:38,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 01:19:38,515 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44339142] [2021-06-05 01:19:38,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 01:19:38,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:19:38,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 01:19:38,826 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 01:19:38,826 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44339142] [2021-06-05 01:19:38,826 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44339142] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 01:19:38,827 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 01:19:38,827 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-06-05 01:19:38,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134265545] [2021-06-05 01:19:38,828 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-05 01:19:38,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 01:19:38,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-05 01:19:38,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-06-05 01:19:38,830 INFO L87 Difference]: Start difference. First operand 832 states and 2022 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:19:39,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 01:19:39,364 INFO L93 Difference]: Finished difference Result 1106 states and 2711 transitions. [2021-06-05 01:19:39,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 01:19:39,365 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 01:19:39,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 01:19:39,371 INFO L225 Difference]: With dead ends: 1106 [2021-06-05 01:19:39,371 INFO L226 Difference]: Without dead ends: 962 [2021-06-05 01:19:39,372 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 437.7ms TimeCoverageRelationStatistics Valid=333, Invalid=789, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 01:19:39,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2021-06-05 01:19:39,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 546. [2021-06-05 01:19:39,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 545 states have (on average 2.4458715596330274) internal successors, (1333), 545 states have internal predecessors, (1333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:19:39,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 1333 transitions. [2021-06-05 01:19:39,395 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 1333 transitions. Word has length 46 [2021-06-05 01:19:39,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 01:19:39,396 INFO L482 AbstractCegarLoop]: Abstraction has 546 states and 1333 transitions. [2021-06-05 01:19:39,396 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:19:39,396 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 1333 transitions. [2021-06-05 01:19:39,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 01:19:39,404 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 01:19:39,405 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 01:19:39,405 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 01:19:39,405 INFO L430 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-05 01:19:39,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 01:19:39,413 INFO L82 PathProgramCache]: Analyzing trace with hash -821612, now seen corresponding path program 1 times [2021-06-05 01:19:39,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 01:19:39,413 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086998395] [2021-06-05 01:19:39,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 01:19:39,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 01:19:39,447 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 01:19:39,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 01:19:39,492 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 01:19:39,520 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-05 01:19:39,521 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-06-05 01:19:39,521 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 01:19:39,521 WARN L242 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-06-05 01:19:39,522 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-06-05 01:19:39,531 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,532 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,532 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,532 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,532 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,533 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,533 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,533 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,533 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,533 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,533 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,533 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,534 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,534 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,534 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,534 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,534 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,534 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,534 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,534 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,534 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,535 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,535 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,535 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,535 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,535 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,535 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,535 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,536 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,536 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,536 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,536 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,536 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,536 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,536 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,536 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,537 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,537 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,537 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,537 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,537 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,537 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,537 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,537 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,538 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,538 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,538 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,538 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,538 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,538 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,539 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,539 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,539 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,539 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,539 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,539 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,539 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,539 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,539 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,540 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,540 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,540 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,540 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,540 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,540 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,540 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,540 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,540 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,541 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,541 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,541 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,541 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,541 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,543 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,543 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,543 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,543 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,543 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,544 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,545 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,545 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,545 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,545 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,545 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,546 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,546 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,546 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,547 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,547 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,547 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:39,548 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 01:19:39,548 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-06-05 01:19:39,549 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 01:19:39,549 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 01:19:39,549 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 01:19:39,549 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 01:19:39,550 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 01:19:39,550 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 01:19:39,550 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 01:19:39,550 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 01:19:39,552 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 86 transitions, 196 flow [2021-06-05 01:19:39,930 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8109 states, 8101 states have (on average 3.525490680162943) internal successors, (28560), 8108 states have internal predecessors, (28560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:19:39,965 INFO L276 IsEmpty]: Start isEmpty. Operand has 8109 states, 8101 states have (on average 3.525490680162943) internal successors, (28560), 8108 states have internal predecessors, (28560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:19:39,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-06-05 01:19:39,966 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 01:19:39,967 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 01:19:39,967 INFO L430 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 01:19:39,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 01:19:39,969 INFO L82 PathProgramCache]: Analyzing trace with hash 1924836355, now seen corresponding path program 1 times [2021-06-05 01:19:39,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 01:19:39,970 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917534287] [2021-06-05 01:19:39,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 01:19:39,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:19:40,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 01:19:40,094 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 01:19:40,094 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917534287] [2021-06-05 01:19:40,094 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917534287] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 01:19:40,094 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 01:19:40,094 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 01:19:40,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324707006] [2021-06-05 01:19:40,095 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 01:19:40,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 01:19:40,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 01:19:40,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-05 01:19:40,117 INFO L87 Difference]: Start difference. First operand has 8109 states, 8101 states have (on average 3.525490680162943) internal successors, (28560), 8108 states have internal predecessors, (28560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:19:40,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 01:19:40,426 INFO L93 Difference]: Finished difference Result 8597 states and 28009 transitions. [2021-06-05 01:19:40,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 01:19:40,427 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-06-05 01:19:40,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 01:19:40,478 INFO L225 Difference]: With dead ends: 8597 [2021-06-05 01:19:40,478 INFO L226 Difference]: Without dead ends: 6508 [2021-06-05 01:19:40,479 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 122.8ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-06-05 01:19:40,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6508 states. [2021-06-05 01:19:40,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6508 to 6028. [2021-06-05 01:19:40,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6028 states, 6024 states have (on average 3.259628154050465) internal successors, (19636), 6027 states have internal predecessors, (19636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:19:40,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6028 states to 6028 states and 19636 transitions. [2021-06-05 01:19:40,721 INFO L78 Accepts]: Start accepts. Automaton has 6028 states and 19636 transitions. Word has length 34 [2021-06-05 01:19:40,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 01:19:40,721 INFO L482 AbstractCegarLoop]: Abstraction has 6028 states and 19636 transitions. [2021-06-05 01:19:40,722 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:19:40,722 INFO L276 IsEmpty]: Start isEmpty. Operand 6028 states and 19636 transitions. [2021-06-05 01:19:40,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 01:19:40,723 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 01:19:40,723 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 01:19:40,723 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 01:19:40,724 INFO L430 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 01:19:40,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 01:19:40,725 INFO L82 PathProgramCache]: Analyzing trace with hash -1857372259, now seen corresponding path program 1 times [2021-06-05 01:19:40,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 01:19:40,728 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690036560] [2021-06-05 01:19:40,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 01:19:40,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:19:40,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 01:19:40,950 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 01:19:40,951 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690036560] [2021-06-05 01:19:40,952 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690036560] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 01:19:40,952 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 01:19:40,952 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-06-05 01:19:40,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143476276] [2021-06-05 01:19:40,952 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-05 01:19:40,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 01:19:40,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-05 01:19:40,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-06-05 01:19:40,954 INFO L87 Difference]: Start difference. First operand 6028 states and 19636 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:19:41,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 01:19:41,760 INFO L93 Difference]: Finished difference Result 10838 states and 34261 transitions. [2021-06-05 01:19:41,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 01:19:41,762 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 01:19:41,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 01:19:41,826 INFO L225 Difference]: With dead ends: 10838 [2021-06-05 01:19:41,826 INFO L226 Difference]: Without dead ends: 10246 [2021-06-05 01:19:41,827 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 569.5ms TimeCoverageRelationStatistics Valid=373, Invalid=1033, Unknown=0, NotChecked=0, Total=1406 [2021-06-05 01:19:41,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10246 states. [2021-06-05 01:19:42,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10246 to 5156. [2021-06-05 01:19:42,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5156 states, 5153 states have (on average 3.265670483213662) internal successors, (16828), 5155 states have internal predecessors, (16828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:19:42,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5156 states to 5156 states and 16828 transitions. [2021-06-05 01:19:42,107 INFO L78 Accepts]: Start accepts. Automaton has 5156 states and 16828 transitions. Word has length 46 [2021-06-05 01:19:42,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 01:19:42,107 INFO L482 AbstractCegarLoop]: Abstraction has 5156 states and 16828 transitions. [2021-06-05 01:19:42,107 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:19:42,107 INFO L276 IsEmpty]: Start isEmpty. Operand 5156 states and 16828 transitions. [2021-06-05 01:19:42,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-05 01:19:42,112 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 01:19:42,113 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 01:19:42,113 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 01:19:42,113 INFO L430 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 01:19:42,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 01:19:42,113 INFO L82 PathProgramCache]: Analyzing trace with hash 1479235996, now seen corresponding path program 1 times [2021-06-05 01:19:42,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 01:19:42,114 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285558768] [2021-06-05 01:19:42,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 01:19:42,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:19:42,236 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 01:19:42,236 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 01:19:42,236 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285558768] [2021-06-05 01:19:42,236 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285558768] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 01:19:42,237 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681585367] [2021-06-05 01:19:42,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 01:19:42,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:19:42,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-05 01:19:42,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 01:19:42,679 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 01:19:42,680 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1681585367] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 01:19:42,680 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 01:19:42,680 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2021-06-05 01:19:42,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813251744] [2021-06-05 01:19:42,681 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-05 01:19:42,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 01:19:42,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-05 01:19:42,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2021-06-05 01:19:42,682 INFO L87 Difference]: Start difference. First operand 5156 states and 16828 transitions. Second operand has 20 states, 20 states have (on average 4.7) internal successors, (94), 20 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:19:44,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 01:19:44,055 INFO L93 Difference]: Finished difference Result 9468 states and 29890 transitions. [2021-06-05 01:19:44,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-06-05 01:19:44,056 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 4.7) internal successors, (94), 20 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-06-05 01:19:44,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 01:19:44,084 INFO L225 Difference]: With dead ends: 9468 [2021-06-05 01:19:44,084 INFO L226 Difference]: Without dead ends: 8940 [2021-06-05 01:19:44,086 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 954 ImplicationChecksByTransitivity, 894.5ms TimeCoverageRelationStatistics Valid=734, Invalid=3048, Unknown=0, NotChecked=0, Total=3782 [2021-06-05 01:19:44,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8940 states. [2021-06-05 01:19:44,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8940 to 4392. [2021-06-05 01:19:44,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4392 states, 4389 states have (on average 3.2330827067669174) internal successors, (14190), 4391 states have internal predecessors, (14190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:19:44,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4392 states to 4392 states and 14190 transitions. [2021-06-05 01:19:44,281 INFO L78 Accepts]: Start accepts. Automaton has 4392 states and 14190 transitions. Word has length 56 [2021-06-05 01:19:44,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 01:19:44,282 INFO L482 AbstractCegarLoop]: Abstraction has 4392 states and 14190 transitions. [2021-06-05 01:19:44,282 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 4.7) internal successors, (94), 20 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:19:44,282 INFO L276 IsEmpty]: Start isEmpty. Operand 4392 states and 14190 transitions. [2021-06-05 01:19:44,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-05 01:19:44,286 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 01:19:44,286 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 01:19:44,501 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-06-05 01:19:44,501 INFO L430 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 01:19:44,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 01:19:44,501 INFO L82 PathProgramCache]: Analyzing trace with hash 1728251235, now seen corresponding path program 1 times [2021-06-05 01:19:44,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 01:19:44,502 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351565856] [2021-06-05 01:19:44,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 01:19:44,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 01:19:44,518 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 01:19:44,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 01:19:44,530 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 01:19:44,543 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-05 01:19:44,543 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-06-05 01:19:44,543 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 01:19:44,543 WARN L242 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-06-05 01:19:44,544 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-06-05 01:19:44,563 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,563 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,564 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,564 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,564 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,564 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,564 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,564 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,564 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,564 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,565 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,565 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,565 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,565 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,566 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,566 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,566 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,566 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,566 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,566 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,566 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,566 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,567 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,567 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,567 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,567 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,567 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,567 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,567 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,567 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,568 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,568 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,568 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,568 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,568 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,568 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,568 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,568 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,569 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,569 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,569 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,569 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,569 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,570 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,570 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,570 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,570 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,570 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,570 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,570 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,570 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,571 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,571 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,571 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,571 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,571 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,571 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,571 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,571 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,572 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,572 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,572 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,572 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,572 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,572 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,572 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,572 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,573 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,573 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,573 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,573 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,573 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,573 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,573 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,573 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,573 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,574 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,574 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,575 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,575 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,575 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,575 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,576 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,576 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,576 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,577 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,578 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,578 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,578 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,578 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,578 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,578 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,579 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,579 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,579 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,579 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,579 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,579 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,580 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,580 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,580 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,580 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,580 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,580 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,581 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,581 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,581 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,582 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,582 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,582 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,583 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,583 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,584 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,584 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,585 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,585 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,585 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,586 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,586 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,587 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,587 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,587 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,587 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,588 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,588 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,588 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,589 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,589 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,589 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,591 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,592 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,592 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,592 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,592 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,592 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:19:44,594 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 01:19:44,594 INFO L255 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-06-05 01:19:44,595 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 01:19:44,595 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 01:19:44,595 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 01:19:44,595 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 01:19:44,596 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 01:19:44,596 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 01:19:44,596 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 01:19:44,596 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 01:19:44,598 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 112 places, 103 transitions, 248 flow [2021-06-05 01:19:50,127 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 48789 states, 48779 states have (on average 4.35187273211833) internal successors, (212280), 48788 states have internal predecessors, (212280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:19:50,210 INFO L276 IsEmpty]: Start isEmpty. Operand has 48789 states, 48779 states have (on average 4.35187273211833) internal successors, (212280), 48788 states have internal predecessors, (212280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:19:50,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-06-05 01:19:50,210 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 01:19:50,211 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 01:19:50,211 INFO L430 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 01:19:50,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 01:19:50,211 INFO L82 PathProgramCache]: Analyzing trace with hash 2020120723, now seen corresponding path program 1 times [2021-06-05 01:19:50,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 01:19:50,212 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668407969] [2021-06-05 01:19:50,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 01:19:50,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:19:50,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 01:19:50,318 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 01:19:50,318 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668407969] [2021-06-05 01:19:50,318 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668407969] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 01:19:50,318 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 01:19:50,318 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 01:19:50,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763103747] [2021-06-05 01:19:50,318 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 01:19:50,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 01:19:50,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 01:19:50,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-05 01:19:50,407 INFO L87 Difference]: Start difference. First operand has 48789 states, 48779 states have (on average 4.35187273211833) internal successors, (212280), 48788 states have internal predecessors, (212280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:19:51,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 01:19:51,193 INFO L93 Difference]: Finished difference Result 57149 states and 233481 transitions. [2021-06-05 01:19:51,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 01:19:51,193 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-06-05 01:19:51,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 01:19:51,645 INFO L225 Difference]: With dead ends: 57149 [2021-06-05 01:19:51,646 INFO L226 Difference]: Without dead ends: 43988 [2021-06-05 01:19:51,646 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 247.3ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-06-05 01:19:52,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43988 states. [2021-06-05 01:19:53,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43988 to 40204. [2021-06-05 01:19:53,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40204 states, 40199 states have (on average 4.09761436851663) internal successors, (164720), 40203 states have internal predecessors, (164720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:19:53,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40204 states to 40204 states and 164720 transitions. [2021-06-05 01:19:53,414 INFO L78 Accepts]: Start accepts. Automaton has 40204 states and 164720 transitions. Word has length 34 [2021-06-05 01:19:53,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 01:19:53,414 INFO L482 AbstractCegarLoop]: Abstraction has 40204 states and 164720 transitions. [2021-06-05 01:19:53,414 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:19:53,414 INFO L276 IsEmpty]: Start isEmpty. Operand 40204 states and 164720 transitions. [2021-06-05 01:19:53,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 01:19:53,415 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 01:19:53,415 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 01:19:53,416 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 01:19:53,416 INFO L430 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 01:19:53,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 01:19:53,417 INFO L82 PathProgramCache]: Analyzing trace with hash 317983230, now seen corresponding path program 1 times [2021-06-05 01:19:53,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 01:19:53,417 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103352852] [2021-06-05 01:19:53,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 01:19:53,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:19:53,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 01:19:53,822 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 01:19:53,823 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103352852] [2021-06-05 01:19:53,823 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103352852] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 01:19:53,823 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 01:19:53,823 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-06-05 01:19:53,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342172693] [2021-06-05 01:19:53,823 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-05 01:19:53,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 01:19:53,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-05 01:19:53,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-06-05 01:19:53,825 INFO L87 Difference]: Start difference. First operand 40204 states and 164720 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:19:55,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 01:19:55,054 INFO L93 Difference]: Finished difference Result 84180 states and 332556 transitions. [2021-06-05 01:19:55,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 01:19:55,055 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 01:19:55,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 01:19:55,398 INFO L225 Difference]: With dead ends: 84180 [2021-06-05 01:19:55,399 INFO L226 Difference]: Without dead ends: 80772 [2021-06-05 01:19:55,399 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 451.1ms TimeCoverageRelationStatistics Valid=373, Invalid=1033, Unknown=0, NotChecked=0, Total=1406 [2021-06-05 01:19:55,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80772 states. [2021-06-05 01:19:57,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80772 to 38472. [2021-06-05 01:19:57,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38472 states, 38468 states have (on average 4.077414994280961) internal successors, (156850), 38471 states have internal predecessors, (156850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:19:57,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38472 states to 38472 states and 156850 transitions. [2021-06-05 01:19:57,447 INFO L78 Accepts]: Start accepts. Automaton has 38472 states and 156850 transitions. Word has length 46 [2021-06-05 01:19:57,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 01:19:57,448 INFO L482 AbstractCegarLoop]: Abstraction has 38472 states and 156850 transitions. [2021-06-05 01:19:57,448 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:19:57,448 INFO L276 IsEmpty]: Start isEmpty. Operand 38472 states and 156850 transitions. [2021-06-05 01:19:57,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-05 01:19:57,452 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 01:19:57,452 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 01:19:57,453 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-05 01:19:57,453 INFO L430 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 01:19:57,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 01:19:57,453 INFO L82 PathProgramCache]: Analyzing trace with hash 1522783278, now seen corresponding path program 1 times [2021-06-05 01:19:57,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 01:19:57,453 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122933089] [2021-06-05 01:19:57,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 01:19:57,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:19:57,566 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 01:19:57,567 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 01:19:57,567 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122933089] [2021-06-05 01:19:57,567 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122933089] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 01:19:57,567 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033647717] [2021-06-05 01:19:57,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 01:19:57,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:19:57,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-05 01:19:57,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 01:19:57,889 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 01:19:57,890 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033647717] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 01:19:57,890 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 01:19:57,890 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2021-06-05 01:19:57,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141463204] [2021-06-05 01:19:57,892 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-05 01:19:57,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 01:19:57,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-05 01:19:57,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2021-06-05 01:19:57,892 INFO L87 Difference]: Start difference. First operand 38472 states and 156850 transitions. Second operand has 20 states, 20 states have (on average 4.7) internal successors, (94), 20 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:19:59,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 01:19:59,749 INFO L93 Difference]: Finished difference Result 80408 states and 316514 transitions. [2021-06-05 01:19:59,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-06-05 01:19:59,750 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 4.7) internal successors, (94), 20 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-06-05 01:19:59,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 01:20:00,295 INFO L225 Difference]: With dead ends: 80408 [2021-06-05 01:20:00,295 INFO L226 Difference]: Without dead ends: 76936 [2021-06-05 01:20:00,297 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 953 ImplicationChecksByTransitivity, 766.9ms TimeCoverageRelationStatistics Valid=734, Invalid=3048, Unknown=0, NotChecked=0, Total=3782 [2021-06-05 01:20:00,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76936 states. [2021-06-05 01:20:01,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76936 to 36324. [2021-06-05 01:20:01,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36324 states, 36320 states have (on average 4.050881057268723) internal successors, (147128), 36323 states have internal predecessors, (147128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:20:01,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36324 states to 36324 states and 147128 transitions. [2021-06-05 01:20:01,647 INFO L78 Accepts]: Start accepts. Automaton has 36324 states and 147128 transitions. Word has length 56 [2021-06-05 01:20:01,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 01:20:01,647 INFO L482 AbstractCegarLoop]: Abstraction has 36324 states and 147128 transitions. [2021-06-05 01:20:01,647 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 4.7) internal successors, (94), 20 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:20:01,647 INFO L276 IsEmpty]: Start isEmpty. Operand 36324 states and 147128 transitions. [2021-06-05 01:20:01,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-05 01:20:01,655 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 01:20:01,655 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 01:20:01,855 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-06-05 01:20:01,855 INFO L430 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 01:20:01,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 01:20:01,856 INFO L82 PathProgramCache]: Analyzing trace with hash 1933156652, now seen corresponding path program 1 times [2021-06-05 01:20:01,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 01:20:01,856 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53410046] [2021-06-05 01:20:01,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 01:20:01,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:20:02,123 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 01:20:02,123 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 01:20:02,123 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53410046] [2021-06-05 01:20:02,123 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53410046] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 01:20:02,123 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138838853] [2021-06-05 01:20:02,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 01:20:02,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:20:02,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 13 conjunts are in the unsatisfiable core [2021-06-05 01:20:02,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 01:20:02,908 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 01:20:02,908 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1138838853] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 01:20:02,908 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 01:20:02,908 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 12] total 27 [2021-06-05 01:20:02,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902720608] [2021-06-05 01:20:02,909 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 01:20:02,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 01:20:02,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 01:20:02,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=615, Unknown=0, NotChecked=0, Total=702 [2021-06-05 01:20:02,910 INFO L87 Difference]: Start difference. First operand 36324 states and 147128 transitions. Second operand has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:20:04,799 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 18 [2021-06-05 01:20:06,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 01:20:06,856 INFO L93 Difference]: Finished difference Result 86400 states and 329716 transitions. [2021-06-05 01:20:06,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2021-06-05 01:20:06,873 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-06-05 01:20:06,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 01:20:07,156 INFO L225 Difference]: With dead ends: 86400 [2021-06-05 01:20:07,157 INFO L226 Difference]: Without dead ends: 84720 [2021-06-05 01:20:07,158 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3122 ImplicationChecksByTransitivity, 3022.7ms TimeCoverageRelationStatistics Valid=1742, Invalid=8158, Unknown=0, NotChecked=0, Total=9900 [2021-06-05 01:20:07,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84720 states. [2021-06-05 01:20:08,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84720 to 35612. [2021-06-05 01:20:08,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35612 states, 35608 states have (on average 4.05380813300382) internal successors, (144348), 35611 states have internal predecessors, (144348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:20:08,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35612 states to 35612 states and 144348 transitions. [2021-06-05 01:20:08,566 INFO L78 Accepts]: Start accepts. Automaton has 35612 states and 144348 transitions. Word has length 60 [2021-06-05 01:20:08,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 01:20:08,566 INFO L482 AbstractCegarLoop]: Abstraction has 35612 states and 144348 transitions. [2021-06-05 01:20:08,567 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:20:08,567 INFO L276 IsEmpty]: Start isEmpty. Operand 35612 states and 144348 transitions. [2021-06-05 01:20:08,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-05 01:20:08,574 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 01:20:08,575 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 01:20:08,788 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-06-05 01:20:08,789 INFO L430 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 01:20:08,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 01:20:08,789 INFO L82 PathProgramCache]: Analyzing trace with hash 1681668076, now seen corresponding path program 2 times [2021-06-05 01:20:08,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 01:20:08,790 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191514736] [2021-06-05 01:20:08,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 01:20:08,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:20:09,018 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 01:20:09,019 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 01:20:09,019 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191514736] [2021-06-05 01:20:09,019 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191514736] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 01:20:09,019 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649875875] [2021-06-05 01:20:09,019 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 01:20:09,094 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-06-05 01:20:09,095 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 01:20:09,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 13 conjunts are in the unsatisfiable core [2021-06-05 01:20:09,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 01:20:09,419 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 01:20:09,419 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649875875] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 01:20:09,419 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-05 01:20:09,419 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [17] total 27 [2021-06-05 01:20:09,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210335557] [2021-06-05 01:20:09,424 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-05 01:20:09,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 01:20:09,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-05 01:20:09,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=602, Unknown=0, NotChecked=0, Total=702 [2021-06-05 01:20:09,425 INFO L87 Difference]: Start difference. First operand 35612 states and 144348 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:20:09,758 WARN L205 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-06-05 01:20:11,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 01:20:11,464 INFO L93 Difference]: Finished difference Result 74968 states and 287098 transitions. [2021-06-05 01:20:11,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-05 01:20:11,469 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-06-05 01:20:11,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 01:20:11,744 INFO L225 Difference]: With dead ends: 74968 [2021-06-05 01:20:11,744 INFO L226 Difference]: Without dead ends: 73336 [2021-06-05 01:20:11,745 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1030 ImplicationChecksByTransitivity, 1369.3ms TimeCoverageRelationStatistics Valid=633, Invalid=2907, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 01:20:11,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73336 states. [2021-06-05 01:20:12,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73336 to 32124. [2021-06-05 01:20:13,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32124 states, 32121 states have (on average 4.091030789825971) internal successors, (131408), 32123 states have internal predecessors, (131408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:20:13,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32124 states to 32124 states and 131408 transitions. [2021-06-05 01:20:13,120 INFO L78 Accepts]: Start accepts. Automaton has 32124 states and 131408 transitions. Word has length 60 [2021-06-05 01:20:13,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 01:20:13,121 INFO L482 AbstractCegarLoop]: Abstraction has 32124 states and 131408 transitions. [2021-06-05 01:20:13,121 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:20:13,121 INFO L276 IsEmpty]: Start isEmpty. Operand 32124 states and 131408 transitions. [2021-06-05 01:20:13,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-06-05 01:20:13,136 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 01:20:13,136 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 01:20:13,340 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-06-05 01:20:13,341 INFO L430 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 01:20:13,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 01:20:13,341 INFO L82 PathProgramCache]: Analyzing trace with hash -411729027, now seen corresponding path program 1 times [2021-06-05 01:20:13,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 01:20:13,342 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364366828] [2021-06-05 01:20:13,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 01:20:13,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:20:13,473 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 01:20:13,474 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 01:20:13,474 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364366828] [2021-06-05 01:20:13,474 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364366828] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 01:20:13,474 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522067674] [2021-06-05 01:20:13,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 01:20:13,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:20:13,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-05 01:20:13,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 01:20:13,853 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 01:20:13,854 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522067674] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 01:20:13,854 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 01:20:13,854 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-06-05 01:20:13,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90612409] [2021-06-05 01:20:13,854 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-06-05 01:20:13,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 01:20:13,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-06-05 01:20:13,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=465, Unknown=0, NotChecked=0, Total=552 [2021-06-05 01:20:13,855 INFO L87 Difference]: Start difference. First operand 32124 states and 131408 transitions. Second operand has 24 states, 24 states have (on average 4.75) internal successors, (114), 24 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:20:15,279 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2021-06-05 01:20:15,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 01:20:15,906 INFO L93 Difference]: Finished difference Result 68652 states and 272148 transitions. [2021-06-05 01:20:15,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-06-05 01:20:15,907 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.75) internal successors, (114), 24 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-06-05 01:20:15,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 01:20:16,093 INFO L225 Difference]: With dead ends: 68652 [2021-06-05 01:20:16,094 INFO L226 Difference]: Without dead ends: 65532 [2021-06-05 01:20:16,095 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1240 ImplicationChecksByTransitivity, 1090.8ms TimeCoverageRelationStatistics Valid=999, Invalid=3971, Unknown=0, NotChecked=0, Total=4970 [2021-06-05 01:20:16,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65532 states. [2021-06-05 01:20:17,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65532 to 30580. [2021-06-05 01:20:17,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30580 states, 30577 states have (on average 4.0412074435032865) internal successors, (123568), 30579 states have internal predecessors, (123568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:20:17,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30580 states to 30580 states and 123568 transitions. [2021-06-05 01:20:17,314 INFO L78 Accepts]: Start accepts. Automaton has 30580 states and 123568 transitions. Word has length 66 [2021-06-05 01:20:17,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 01:20:17,314 INFO L482 AbstractCegarLoop]: Abstraction has 30580 states and 123568 transitions. [2021-06-05 01:20:17,314 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 4.75) internal successors, (114), 24 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:20:17,314 INFO L276 IsEmpty]: Start isEmpty. Operand 30580 states and 123568 transitions. [2021-06-05 01:20:17,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-06-05 01:20:17,327 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 01:20:17,327 INFO L521 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 01:20:17,529 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-06-05 01:20:17,530 INFO L430 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 01:20:17,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 01:20:17,530 INFO L82 PathProgramCache]: Analyzing trace with hash 1403611569, now seen corresponding path program 1 times [2021-06-05 01:20:17,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 01:20:17,530 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717889932] [2021-06-05 01:20:17,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 01:20:17,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 01:20:17,552 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 01:20:17,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 01:20:17,570 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 01:20:17,581 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-05 01:20:17,581 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-06-05 01:20:17,581 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-06-05 01:20:17,581 WARN L242 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-06-05 01:20:17,581 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-06-05 01:20:17,596 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,597 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,597 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,597 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,597 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,597 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,597 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,597 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,598 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,598 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,598 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,598 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,598 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,598 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,598 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,598 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,598 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,598 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,599 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,599 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,599 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,599 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,599 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,599 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,599 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,599 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,599 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,599 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,599 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,600 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,600 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,600 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,600 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,600 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,600 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,600 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,600 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,600 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,600 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,600 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,600 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,600 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,601 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,601 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,601 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,601 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,601 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,601 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,601 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,601 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,601 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,601 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,601 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,601 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,601 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,602 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,602 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,602 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,602 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,602 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,603 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,603 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,603 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,603 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,603 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,603 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,603 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,603 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,603 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,603 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,603 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,603 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,604 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,604 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,604 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,604 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,604 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,604 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,604 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,604 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,604 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,604 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,604 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,604 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,605 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,605 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,605 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,605 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,605 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,605 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,605 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,605 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,605 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,605 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,605 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,605 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,606 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,606 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,606 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,606 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,606 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,606 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,606 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,606 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,606 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,606 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,606 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,606 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,607 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,607 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,607 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,607 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,607 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,607 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,607 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,607 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,607 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,607 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,607 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,607 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,608 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,608 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,608 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,608 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,608 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,608 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,608 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,608 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,608 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,608 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,608 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,608 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,608 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,608 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,609 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,609 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,609 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,609 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,609 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,609 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,609 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,611 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,611 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,611 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,611 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,611 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,612 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,612 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,612 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,612 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,612 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,613 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,613 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,613 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,614 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,614 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,615 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,615 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,615 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,615 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,615 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,615 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,616 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,616 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,616 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,616 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,616 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,616 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,618 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,618 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,618 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,618 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,618 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,618 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,619 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,619 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,619 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,619 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,619 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,620 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:20:17,620 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 01:20:17,621 INFO L255 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-06-05 01:20:17,621 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 01:20:17,621 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 01:20:17,621 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 01:20:17,622 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 01:20:17,622 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 01:20:17,622 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 01:20:17,622 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 01:20:17,622 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 01:20:17,623 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 132 places, 120 transitions, 304 flow [2021-06-05 01:24:06,335 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 292869 states, 292857 states have (on average 5.1834171626425185) internal successors, (1518000), 292868 states have internal predecessors, (1518000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:24:06,718 INFO L276 IsEmpty]: Start isEmpty. Operand has 292869 states, 292857 states have (on average 5.1834171626425185) internal successors, (1518000), 292868 states have internal predecessors, (1518000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:24:06,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-06-05 01:24:06,719 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 01:24:06,719 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 01:24:06,719 INFO L430 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-05 01:24:06,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 01:24:06,719 INFO L82 PathProgramCache]: Analyzing trace with hash -1908114173, now seen corresponding path program 1 times [2021-06-05 01:24:06,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 01:24:06,720 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404436070] [2021-06-05 01:24:06,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 01:24:06,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:24:06,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 01:24:06,784 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 01:24:06,784 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404436070] [2021-06-05 01:24:06,784 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404436070] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 01:24:06,784 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 01:24:06,784 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 01:24:06,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718597941] [2021-06-05 01:24:06,784 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 01:24:06,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 01:24:06,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 01:24:06,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-05 01:24:07,187 INFO L87 Difference]: Start difference. First operand has 292869 states, 292857 states have (on average 5.1834171626425185) internal successors, (1518000), 292868 states have internal predecessors, (1518000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:24:11,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 01:24:11,606 INFO L93 Difference]: Finished difference Result 365261 states and 1798625 transitions. [2021-06-05 01:24:11,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 01:24:11,607 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-06-05 01:24:11,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 01:24:13,662 INFO L225 Difference]: With dead ends: 365261 [2021-06-05 01:24:13,662 INFO L226 Difference]: Without dead ends: 283620 [2021-06-05 01:24:13,662 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 99.0ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-06-05 01:24:18,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283620 states. [2021-06-05 01:24:25,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283620 to 257260. [2021-06-05 01:24:25,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257260 states, 257254 states have (on average 4.94368989403469) internal successors, (1271784), 257259 states have internal predecessors, (1271784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:24:28,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257260 states to 257260 states and 1271784 transitions. [2021-06-05 01:24:28,588 INFO L78 Accepts]: Start accepts. Automaton has 257260 states and 1271784 transitions. Word has length 34 [2021-06-05 01:24:28,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 01:24:28,589 INFO L482 AbstractCegarLoop]: Abstraction has 257260 states and 1271784 transitions. [2021-06-05 01:24:28,589 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:24:28,589 INFO L276 IsEmpty]: Start isEmpty. Operand 257260 states and 1271784 transitions. [2021-06-05 01:24:28,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 01:24:28,590 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 01:24:28,590 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 01:24:28,591 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-06-05 01:24:28,591 INFO L430 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-05 01:24:28,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 01:24:28,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1086704383, now seen corresponding path program 1 times [2021-06-05 01:24:28,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 01:24:28,591 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408278656] [2021-06-05 01:24:28,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 01:24:28,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:24:28,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 01:24:28,732 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 01:24:28,732 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408278656] [2021-06-05 01:24:28,732 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408278656] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 01:24:28,732 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 01:24:28,732 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-06-05 01:24:28,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721684377] [2021-06-05 01:24:28,733 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-05 01:24:28,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 01:24:28,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-05 01:24:28,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-06-05 01:24:28,734 INFO L87 Difference]: Start difference. First operand 257260 states and 1271784 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:24:36,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 01:24:36,182 INFO L93 Difference]: Finished difference Result 584032 states and 2790176 transitions. [2021-06-05 01:24:36,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 01:24:36,183 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-05 01:24:36,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 01:24:42,358 INFO L225 Difference]: With dead ends: 584032 [2021-06-05 01:24:42,361 INFO L226 Difference]: Without dead ends: 562704 [2021-06-05 01:24:42,362 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 400.4ms TimeCoverageRelationStatistics Valid=373, Invalid=1033, Unknown=0, NotChecked=0, Total=1406 [2021-06-05 01:24:49,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562704 states. [2021-06-05 01:25:00,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562704 to 260480. [2021-06-05 01:25:00,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260480 states, 260475 states have (on average 4.911711296669546) internal successors, (1279378), 260479 states have internal predecessors, (1279378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:25:02,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260480 states to 260480 states and 1279378 transitions. [2021-06-05 01:25:02,925 INFO L78 Accepts]: Start accepts. Automaton has 260480 states and 1279378 transitions. Word has length 46 [2021-06-05 01:25:02,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 01:25:02,925 INFO L482 AbstractCegarLoop]: Abstraction has 260480 states and 1279378 transitions. [2021-06-05 01:25:02,925 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:25:02,925 INFO L276 IsEmpty]: Start isEmpty. Operand 260480 states and 1279378 transitions. [2021-06-05 01:25:02,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-05 01:25:02,928 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 01:25:02,928 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 01:25:02,928 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-06-05 01:25:02,928 INFO L430 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-05 01:25:02,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 01:25:02,929 INFO L82 PathProgramCache]: Analyzing trace with hash -327900800, now seen corresponding path program 1 times [2021-06-05 01:25:02,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 01:25:02,929 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431130869] [2021-06-05 01:25:02,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 01:25:02,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:25:03,011 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 01:25:03,012 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 01:25:03,012 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431130869] [2021-06-05 01:25:03,012 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431130869] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 01:25:03,012 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [767453240] [2021-06-05 01:25:03,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 01:25:03,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:25:03,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-05 01:25:03,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 01:25:03,434 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 01:25:03,435 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [767453240] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 01:25:03,435 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 01:25:03,435 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2021-06-05 01:25:03,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214795478] [2021-06-05 01:25:03,435 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-05 01:25:03,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 01:25:03,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-05 01:25:03,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2021-06-05 01:25:03,437 INFO L87 Difference]: Start difference. First operand 260480 states and 1279378 transitions. Second operand has 20 states, 20 states have (on average 4.7) internal successors, (94), 20 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:25:10,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 01:25:10,525 INFO L93 Difference]: Finished difference Result 584272 states and 2780996 transitions. [2021-06-05 01:25:10,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-06-05 01:25:10,526 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 4.7) internal successors, (94), 20 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-06-05 01:25:10,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 01:25:17,526 INFO L225 Difference]: With dead ends: 584272 [2021-06-05 01:25:17,526 INFO L226 Difference]: Without dead ends: 562624 [2021-06-05 01:25:17,527 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 954 ImplicationChecksByTransitivity, 655.4ms TimeCoverageRelationStatistics Valid=734, Invalid=3048, Unknown=0, NotChecked=0, Total=3782 [2021-06-05 01:25:24,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562624 states. [2021-06-05 01:25:35,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562624 to 261640. [2021-06-05 01:25:35,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261640 states, 261635 states have (on average 4.886540409348902) internal successors, (1278490), 261639 states have internal predecessors, (1278490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:25:38,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261640 states to 261640 states and 1278490 transitions. [2021-06-05 01:25:38,300 INFO L78 Accepts]: Start accepts. Automaton has 261640 states and 1278490 transitions. Word has length 56 [2021-06-05 01:25:38,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 01:25:38,300 INFO L482 AbstractCegarLoop]: Abstraction has 261640 states and 1278490 transitions. [2021-06-05 01:25:38,301 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 4.7) internal successors, (94), 20 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:25:38,301 INFO L276 IsEmpty]: Start isEmpty. Operand 261640 states and 1278490 transitions. [2021-06-05 01:25:38,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-05 01:25:38,306 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 01:25:38,306 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 01:25:38,507 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 01:25:38,507 INFO L430 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-05 01:25:38,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 01:25:38,507 INFO L82 PathProgramCache]: Analyzing trace with hash 1990760464, now seen corresponding path program 1 times [2021-06-05 01:25:38,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 01:25:38,508 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282187976] [2021-06-05 01:25:38,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 01:25:38,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:25:38,688 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 01:25:38,688 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 01:25:38,688 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282187976] [2021-06-05 01:25:38,688 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282187976] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 01:25:38,688 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323915708] [2021-06-05 01:25:38,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 01:25:38,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:25:38,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 13 conjunts are in the unsatisfiable core [2021-06-05 01:25:38,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 01:25:39,038 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 01:25:39,039 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323915708] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 01:25:39,039 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-05 01:25:39,039 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [17] total 27 [2021-06-05 01:25:39,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181702504] [2021-06-05 01:25:39,039 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-05 01:25:39,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 01:25:39,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-05 01:25:39,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=602, Unknown=0, NotChecked=0, Total=702 [2021-06-05 01:25:39,040 INFO L87 Difference]: Start difference. First operand 261640 states and 1278490 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:25:46,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 01:25:46,434 INFO L93 Difference]: Finished difference Result 659652 states and 3054140 transitions. [2021-06-05 01:25:46,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-05 01:25:46,435 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-06-05 01:25:46,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 01:25:54,373 INFO L225 Difference]: With dead ends: 659652 [2021-06-05 01:25:54,374 INFO L226 Difference]: Without dead ends: 652020 [2021-06-05 01:25:54,389 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1033 ImplicationChecksByTransitivity, 1048.0ms TimeCoverageRelationStatistics Valid=633, Invalid=2907, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 01:26:01,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652020 states. [2021-06-05 01:26:14,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652020 to 259344. [2021-06-05 01:26:14,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259344 states, 259339 states have (on average 4.888080851703754) internal successors, (1267670), 259343 states have internal predecessors, (1267670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:26:16,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259344 states to 259344 states and 1267670 transitions. [2021-06-05 01:26:16,548 INFO L78 Accepts]: Start accepts. Automaton has 259344 states and 1267670 transitions. Word has length 60 [2021-06-05 01:26:16,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 01:26:16,548 INFO L482 AbstractCegarLoop]: Abstraction has 259344 states and 1267670 transitions. [2021-06-05 01:26:16,548 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:26:16,548 INFO L276 IsEmpty]: Start isEmpty. Operand 259344 states and 1267670 transitions. [2021-06-05 01:26:16,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-05 01:26:16,553 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 01:26:16,553 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 01:26:16,756 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 01:26:16,757 INFO L430 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-05 01:26:16,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 01:26:16,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1469779694, now seen corresponding path program 2 times [2021-06-05 01:26:16,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 01:26:16,757 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515941944] [2021-06-05 01:26:16,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 01:26:16,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:26:16,951 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 01:26:16,951 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 01:26:16,953 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515941944] [2021-06-05 01:26:16,953 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515941944] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 01:26:16,953 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2102455128] [2021-06-05 01:26:16,953 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 01:26:17,029 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-06-05 01:26:17,029 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 01:26:17,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 13 conjunts are in the unsatisfiable core [2021-06-05 01:26:17,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 01:26:17,939 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 01:26:17,939 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2102455128] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 01:26:17,939 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-05 01:26:17,939 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [17] total 27 [2021-06-05 01:26:17,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547688019] [2021-06-05 01:26:17,940 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-05 01:26:17,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 01:26:17,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-05 01:26:17,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=602, Unknown=0, NotChecked=0, Total=702 [2021-06-05 01:26:17,940 INFO L87 Difference]: Start difference. First operand 259344 states and 1267670 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:26:25,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 01:26:25,397 INFO L93 Difference]: Finished difference Result 662628 states and 3065692 transitions. [2021-06-05 01:26:25,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-05 01:26:25,398 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-06-05 01:26:25,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 01:26:32,046 INFO L225 Difference]: With dead ends: 662628 [2021-06-05 01:26:32,046 INFO L226 Difference]: Without dead ends: 654852 [2021-06-05 01:26:32,047 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1033 ImplicationChecksByTransitivity, 1571.7ms TimeCoverageRelationStatistics Valid=633, Invalid=2907, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 01:26:40,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654852 states. [2021-06-05 01:26:51,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654852 to 245872. [2021-06-05 01:26:52,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245872 states, 245868 states have (on average 4.90273642767664) internal successors, (1205426), 245871 states have internal predecessors, (1205426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:26:54,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245872 states to 245872 states and 1205426 transitions. [2021-06-05 01:26:54,172 INFO L78 Accepts]: Start accepts. Automaton has 245872 states and 1205426 transitions. Word has length 60 [2021-06-05 01:26:54,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 01:26:54,172 INFO L482 AbstractCegarLoop]: Abstraction has 245872 states and 1205426 transitions. [2021-06-05 01:26:54,172 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:26:54,172 INFO L276 IsEmpty]: Start isEmpty. Operand 245872 states and 1205426 transitions. [2021-06-05 01:26:54,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-06-05 01:26:54,188 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 01:26:54,188 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 01:26:54,392 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-06-05 01:26:54,393 INFO L430 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-05 01:26:54,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 01:26:54,393 INFO L82 PathProgramCache]: Analyzing trace with hash 1479281632, now seen corresponding path program 1 times [2021-06-05 01:26:54,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 01:26:54,394 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993638256] [2021-06-05 01:26:54,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 01:26:54,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:26:54,482 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 01:26:54,482 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 01:26:54,482 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993638256] [2021-06-05 01:26:54,482 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993638256] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 01:26:54,482 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2056885299] [2021-06-05 01:26:54,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 01:26:55,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:26:55,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-05 01:26:55,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 01:26:55,551 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 01:26:55,552 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2056885299] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 01:26:55,552 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 01:26:55,552 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-06-05 01:26:55,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510170051] [2021-06-05 01:26:55,552 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-06-05 01:26:55,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 01:26:55,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-06-05 01:26:55,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=465, Unknown=0, NotChecked=0, Total=552 [2021-06-05 01:26:55,553 INFO L87 Difference]: Start difference. First operand 245872 states and 1205426 transitions. Second operand has 24 states, 24 states have (on average 4.75) internal successors, (114), 24 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:27:02,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 01:27:02,684 INFO L93 Difference]: Finished difference Result 555428 states and 2642936 transitions. [2021-06-05 01:27:02,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-06-05 01:27:02,684 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.75) internal successors, (114), 24 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-06-05 01:27:02,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 01:27:08,281 INFO L225 Difference]: With dead ends: 555428 [2021-06-05 01:27:08,282 INFO L226 Difference]: Without dead ends: 533812 [2021-06-05 01:27:08,283 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1240 ImplicationChecksByTransitivity, 748.3ms TimeCoverageRelationStatistics Valid=999, Invalid=3971, Unknown=0, NotChecked=0, Total=4970 [2021-06-05 01:27:15,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533812 states. [2021-06-05 01:27:25,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533812 to 249780. [2021-06-05 01:27:25,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249780 states, 249776 states have (on average 4.864422522580232) internal successors, (1215016), 249779 states have internal predecessors, (1215016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:27:27,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249780 states to 249780 states and 1215016 transitions. [2021-06-05 01:27:27,509 INFO L78 Accepts]: Start accepts. Automaton has 249780 states and 1215016 transitions. Word has length 66 [2021-06-05 01:27:27,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 01:27:27,509 INFO L482 AbstractCegarLoop]: Abstraction has 249780 states and 1215016 transitions. [2021-06-05 01:27:27,509 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 4.75) internal successors, (114), 24 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:27:27,509 INFO L276 IsEmpty]: Start isEmpty. Operand 249780 states and 1215016 transitions. [2021-06-05 01:27:27,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-06-05 01:27:27,539 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 01:27:27,540 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 01:27:27,744 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 01:27:27,745 INFO L430 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-05 01:27:27,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 01:27:27,745 INFO L82 PathProgramCache]: Analyzing trace with hash 848577072, now seen corresponding path program 1 times [2021-06-05 01:27:27,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 01:27:27,746 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654281631] [2021-06-05 01:27:27,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 01:27:27,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:27:27,864 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 01:27:27,865 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 01:27:27,865 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654281631] [2021-06-05 01:27:27,865 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654281631] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 01:27:27,865 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1386215263] [2021-06-05 01:27:27,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 01:27:27,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:27:27,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 14 conjunts are in the unsatisfiable core [2021-06-05 01:27:27,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 01:27:28,235 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 01:27:28,235 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1386215263] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 01:27:28,235 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 01:27:28,235 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2021-06-05 01:27:28,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062747724] [2021-06-05 01:27:28,237 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 01:27:28,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 01:27:28,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 01:27:28,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=652, Unknown=0, NotChecked=0, Total=756 [2021-06-05 01:27:28,238 INFO L87 Difference]: Start difference. First operand 249780 states and 1215016 transitions. Second operand has 28 states, 28 states have (on average 4.357142857142857) internal successors, (122), 28 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:27:30,117 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-06-05 01:27:45,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 01:27:45,042 INFO L93 Difference]: Finished difference Result 1205212 states and 5587722 transitions. [2021-06-05 01:27:45,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2021-06-05 01:27:45,042 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.357142857142857) internal successors, (122), 28 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-06-05 01:27:45,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 01:27:58,672 INFO L225 Difference]: With dead ends: 1205212 [2021-06-05 01:27:58,673 INFO L226 Difference]: Without dead ends: 1196812 [2021-06-05 01:27:58,678 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10273 ImplicationChecksByTransitivity, 2918.5ms TimeCoverageRelationStatistics Valid=4369, Invalid=25043, Unknown=0, NotChecked=0, Total=29412 [2021-06-05 01:28:06,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1196812 states. [2021-06-05 01:28:28,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1196812 to 245396. [2021-06-05 01:28:28,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245396 states, 245392 states have (on average 4.870900436852057) internal successors, (1195280), 245395 states have internal predecessors, (1195280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:28:30,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245396 states to 245396 states and 1195280 transitions. [2021-06-05 01:28:30,963 INFO L78 Accepts]: Start accepts. Automaton has 245396 states and 1195280 transitions. Word has length 70 [2021-06-05 01:28:30,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 01:28:30,963 INFO L482 AbstractCegarLoop]: Abstraction has 245396 states and 1195280 transitions. [2021-06-05 01:28:30,963 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.357142857142857) internal successors, (122), 28 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:28:30,963 INFO L276 IsEmpty]: Start isEmpty. Operand 245396 states and 1195280 transitions. [2021-06-05 01:28:30,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-06-05 01:28:30,997 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 01:28:30,997 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 01:28:31,200 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-06-05 01:28:31,201 INFO L430 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-05 01:28:31,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 01:28:31,201 INFO L82 PathProgramCache]: Analyzing trace with hash -1388005810, now seen corresponding path program 2 times [2021-06-05 01:28:31,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 01:28:31,202 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538465058] [2021-06-05 01:28:31,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 01:28:31,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:28:31,331 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 01:28:31,331 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 01:28:31,331 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538465058] [2021-06-05 01:28:31,331 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538465058] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 01:28:31,331 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [775058274] [2021-06-05 01:28:31,331 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 01:28:31,434 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-06-05 01:28:31,435 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 01:28:31,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 13 conjunts are in the unsatisfiable core [2021-06-05 01:28:31,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 01:28:31,709 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-06-05 01:28:31,709 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [775058274] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 01:28:31,709 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-05 01:28:31,709 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [15] total 25 [2021-06-05 01:28:31,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803079401] [2021-06-05 01:28:31,710 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-05 01:28:31,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 01:28:31,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-05 01:28:31,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2021-06-05 01:28:31,711 INFO L87 Difference]: Start difference. First operand 245396 states and 1195280 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:28:32,922 WARN L205 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 22 [2021-06-05 01:28:39,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 01:28:39,786 INFO L93 Difference]: Finished difference Result 676000 states and 3110744 transitions. [2021-06-05 01:28:39,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-05 01:28:39,813 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-06-05 01:28:39,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 01:28:47,565 INFO L225 Difference]: With dead ends: 676000 [2021-06-05 01:28:47,565 INFO L226 Difference]: Without dead ends: 668224 [2021-06-05 01:28:47,567 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 935 ImplicationChecksByTransitivity, 1293.4ms TimeCoverageRelationStatistics Valid=612, Invalid=2694, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 01:28:54,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668224 states. [2021-06-05 01:29:06,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668224 to 237364. [2021-06-05 01:29:07,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237364 states, 237360 states have (on average 4.872227839568588) internal successors, (1156472), 237363 states have internal predecessors, (1156472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:29:08,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237364 states to 237364 states and 1156472 transitions. [2021-06-05 01:29:08,981 INFO L78 Accepts]: Start accepts. Automaton has 237364 states and 1156472 transitions. Word has length 70 [2021-06-05 01:29:08,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 01:29:08,981 INFO L482 AbstractCegarLoop]: Abstraction has 237364 states and 1156472 transitions. [2021-06-05 01:29:08,982 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:29:08,982 INFO L276 IsEmpty]: Start isEmpty. Operand 237364 states and 1156472 transitions. [2021-06-05 01:29:09,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-06-05 01:29:09,014 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 01:29:09,014 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 01:29:09,216 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2021-06-05 01:29:09,217 INFO L430 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-05 01:29:09,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 01:29:09,217 INFO L82 PathProgramCache]: Analyzing trace with hash -1060657690, now seen corresponding path program 1 times [2021-06-05 01:29:09,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 01:29:09,218 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133967231] [2021-06-05 01:29:09,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 01:29:09,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:29:09,345 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 01:29:09,346 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 01:29:09,346 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133967231] [2021-06-05 01:29:09,346 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133967231] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 01:29:09,346 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545942005] [2021-06-05 01:29:09,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 01:29:09,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:29:09,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 14 conjunts are in the unsatisfiable core [2021-06-05 01:29:09,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 01:29:09,739 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 01:29:09,739 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1545942005] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 01:29:09,740 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 01:29:09,740 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2021-06-05 01:29:09,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711555107] [2021-06-05 01:29:09,740 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 01:29:09,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 01:29:09,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 01:29:09,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=671, Unknown=0, NotChecked=0, Total=756 [2021-06-05 01:29:09,741 INFO L87 Difference]: Start difference. First operand 237364 states and 1156472 transitions. Second operand has 28 states, 28 states have (on average 4.357142857142857) internal successors, (122), 28 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:29:11,351 WARN L205 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 17 [2021-06-05 01:29:30,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 01:29:30,187 INFO L93 Difference]: Finished difference Result 1386228 states and 6420106 transitions. [2021-06-05 01:29:30,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 264 states. [2021-06-05 01:29:30,188 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.357142857142857) internal successors, (122), 28 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-06-05 01:29:30,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 01:29:47,241 INFO L225 Difference]: With dead ends: 1386228 [2021-06-05 01:29:47,241 INFO L226 Difference]: Without dead ends: 1374324 [2021-06-05 01:29:47,264 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 280 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32594 ImplicationChecksByTransitivity, 5437.6ms TimeCoverageRelationStatistics Valid=10281, Invalid=68961, Unknown=0, NotChecked=0, Total=79242 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown